_____they __________to help their parents at home?
A. Do/ have to
B. Does/ have to
C. Do/ has to
D. Do/ have
Trả lời:
Cấu trúc câu nghi vấn: Do/ Does + S + have to + V nguyên thể?
Chủ ngữ “They” số nhiều nên sử dung trợ động từ “Do”
=> Do they have to to help their parents at home?
Tạm dịch: Các em có phải giúp đỡ bố mẹ ở nhà không?
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