The shopkeeper warned the boys don't learn their bicycles against his windows.

Câu hỏi :

Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction.
The shopkeeper warned the boys don't learn their bicycles against his windows.

A. The

B. don't

C. their

D. against

* Đáp án

B

* Hướng dẫn giải

Đáp án B

– warn somebody against something/doing something : cảnh báo ai không được làm gì.

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