Choose the underlined word or phrase (A, B, C or D) that needs correcting: I think you should to do the morning exercise.

Câu hỏi :

Choose the underlined word or phrase (A, B, C or D) that needs correcting: I think you should to do the morning exercise.

A. think

B. should

C. to do

D. morning exercise

* Đáp án

C

* Hướng dẫn giải

should + V nguyên mẫu

to do ⇒ do

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