Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. My teeth were a little yellow so I ______ by the dentist.

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Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

My teeth were a little yellow so I ______ by the dentist.

was cleaned

have them cleaned

had cleaned them

had them cleaned

Giải thích

Đáp án: D

Giải thích:

Have st done (by sb): có cái gì được làm bởi ai

Ở đây phải chia quá khứ vì có “were” ở vế trước.

Dịch: Răng của tôi hơi vàng vì vậy tôi đã để nha sĩ làm sạch răng.