Don't walk too fast. I can't keep________you.the following questions.

Câu hỏi :

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Don't walk too fast. I can't keep________you.

A.on to

B.on with

C.up to

D. up with

* Đáp án

* Hướng dẫn giải

Đáp án là D. keep up with : theo kịp...

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