If there was a technical failure, Gagarin might never get __________ to the Earth.

Câu hỏi :

If there was a technical failure, Gagarin might never get __________ to the Earth.

A. to

B. back

C. from

D. down

* Đáp án

B

* Hướng dẫn giải

Chọn B

get back = to return to a place after you have been somewhere else

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