It is important that the patient stays in bed until he fully recovers from the operation.

Câu hỏi :

Choose A, B, C, or D to indicate the underlined part that needs correction in each of the following questions.

A. important

B. stays

C. until

D. operation

* Đáp án

B

* Hướng dẫn giải

Đáp án B

Stays => stay

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