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Câu hỏi:

20/07/2024 48

It is necessary that a life-guard __________ the swimming pool while the children are taking their swimming lessons.


A. monitored  


B. monitors

C. monitoring

D. monitor

Đáp án chính xác

Trả lời:

verified Giải bởi Vietjack

Đáp án đúng là: D

Giải thích: Phía trước có mạo từ “a’’ và TT “life-guard’’ nên cần 1 DT số ít

Dịch: Cần có nhân viên cứu hộ giám sát bể bơi trong khi trẻ học bơi.

Câu trả lời này có hữu ích không?

0

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