They held a party to congratulate _______ their son’s success to become an engineer.

Câu hỏi :

They held a party to congratulate _______ their son’s success to become an engineer.

A. on

B. in

C. to

D. up

* Đáp án

A

* Hướng dẫn giải

Chọn A

congratulate on: chúc mừng

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