Graduate students often spend their weekends_______data for their research.

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

A. to gather

B. together

C. to gathering

D. gathering

* Đáp án

D

* Hướng dẫn giải

Chọn D

Cấu trúc “spend time (on) st/doing st”: dành thời gian vào cái gì/làm việc gì

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