A. There exists no single solution to solve all communities' problems.

B. Not communities share the same problems, hence no single solution.

C. All communities have their own needs but require the same solution.

D. There is no one solution to meet the needs of all communities.

A. The education itself has been considerably impacted by volunteering activities.

B. The impact of volunteering on the education system itself is worth considering.

C. There is a considerable impact of volunteering on its education system itself.

D. It is the volunteering activities that have considerable impact on education.

A. A contribution from volunteering to the economy has been significantly made.

B. The economy all around the world benefits significantly from volunteering.

C. Volunteers around the world have made significant contribution to the economy.

D. Volunteering has significantly contributed to the world economy in all sectors.

A. Nobody thinks it is meaningless to loose money for charity work.

B. Saving some pocket money for charity work is a meaningful thing to do.

C. It means that we have to save some pocket money for charity work.

D. We mean to save some pocket money for charity work.

A. The study attracted nine volunteers to take part in.

B. They recruited nine volunteers to takepart in the study.

C. All the nine recruited volunteers took part in the study.

D. The recruitment of nine volunteers helped the study a lot.

A. Patient volunteers help test drugs to monitor their adverse reactions to long-term use.

B. Patient volunteers are tested by drugs to monitor adverse reactions to long-term use.

C. Volunteers test drugs for patients to monitor their adverse reactions to long-term use.

D. Adverse reactions to long-term use are monitored after being tested in patient volunteers.

A. The volunteer work in this charity organisation is disappointed at Mary.

B. Mary found the volunteer work in this charity organisation disappointing.

C. The volunteer work in this charity organisation makes Mary disappointing.

D. Mary found it disappointed to do volunteer work in this charity organisation.

A. Coaching children and youth are the most common activities included in a wide range of volunteer working activities.

B. Coaching children and youth are included in a wide range of activities of volunteer work.

C. Including a wide range of activities, volunteer work involves coaching children and youth.

D. Volunteer work includes a wide range of activities, among which are coaching children and youth.

A. Although it is recognized that students' volunteer work will benefit communities, its primary purpose is to contribute to students' development.

B. As it is recognized that students' volunteer work will benefit communities, its primary purpose is to contribute to students' development.

C. As the primary purpose of students' volunteer work is to contribute to students' development, its benefit to communities is recognized.

D. To recognize the benefit of students' volunteer work to communities, it is to note that its primary purpose is to contribute to students' development.

A. They were busy with their schoolwork, but they still spent time helping the elderly in the retirement home.

B. They spent time helping the elderly in the retirement home, so they were busy with their schoolwork.

C. They were busy with their schoolwork, and they spent time helping the elderly in the retirement home.

D. They spent time helping the elderly in the retirement home, or they were busy with their schoolwork.

A. Some students took part in directing the traffic, so some others took care of the war invalids.

B. Some students took part in directing the traffic, for some others took care of the to war invalids.

C. Some students took part in directing the traffic, and some others took care of the war invalids.

D. Some students took part in directing the traffic, but some others took care of the war invalids.

A. Volunteer work is a component of informal work, which has become a focus of increased attention by policy makers throughout the world.

B. Policy makers around the world pay increase attention to volunteer work as it is a component of informal work.

C. Because it is a component of informal work, volunteer work has drawn attention of policy makers throughout the world.

D. Policy makers throughout the world now are paying increased attention to volunteer work as a focal component of informal work.

A. After Angelina Jolie began taking an interest in charity work, she was filming in Cambodia.

B. Angelina Jolie began taking an interest in charity work while she was filming in Cambodia.

C. Before Angelina Jolie was filming in Cambodia, she began to take an interest in charity work.

D. As soon as Angelina Jolie began taking an interest in charity work, she was filming in Cambodia then.

A. Because the lack of systematic data on volunteer work is not simply an academic matter, it limits the ability to make the most effective use of this important resource.

B. The lack of systematic data on volunteer work is not only simply an academic matter, but it also limits the ability to make the most effective use of this important resource.

C. Due to the lack of systematic data on volunteer work, it is now not only a simple academic matter but also limits the ability to make an effective use of this important resource.

D. Because the lack of systematic data on volunteer work limits the ability to make the most effective use of this important resource, it is not simply an academic matter.

A. Seeking opportunities nearer their homes makes some volunteers unwilling to travel.

B. Being able to seek opportunities nearer home, some volunteers are not willing to travel.

C. When volunteers are not willing to travel, they will try to seek opportunities nearer home.

D. Because some volunteers are not willing to travel, they seek opportunities nearer home.

A. Coaching children and youth are the most common activities included in a wide range of volunteer working activities.

B. Coaching children and youth are included in a wide range of activities of volunteer work.

C. Including a wide range of activities, volunteer work involves coaching children and youth.

D. Volunteer work includes a wide range of activities, among which are coaching children and youth.

A. Patient volunteers help test drugs to monitor their adverse reactions to long-term use.

B. Patient volunteers are tested by drugs to monitor adverse reactions to long-term use.

C. Volunteers test drugs for patients to monitor their adverse reactions to long-term use.

D. Adverse reactions to long-term use are monitored after being tested in patient volunteers.

A. More and more American people, especially the retired, do volunteer work.

B. The number of volunteers in the United States is increasing faster and faster.

C. More retired people in the United States start doing charity work.

D. More American people, especially the retired, refuse to be voluntary.

A. Despite his young age, the boy established an athletic programme for children with special needs.

B. Until the boy was only 10 years old, he established an athletic programme for children with special needs.

C. The boy established an athletic programme for children with special needs because he was only 10 years old.

D. The boy established an athletic programme for children with special needs in case of his young age.

A. If SHARE is a non-profit organisation, it will provide thousands of girls in Africa with books and school supplies.

B. Although SHARE is a non-profit organisation, it provides thousands of girls in Africa with books and school supplies.

C. SHARE is a non-profit organisation until it provides thousands of girls in Africa with books and school supplies.

D. SHARE is a non-profit organisation which provides thousands of girls in Africa with books and school supplies.