Mukai Chiaki, the first female Japanese astronaut, 15 days aboard the space shuttle Columbia in space before it to the Earth on July 23, 1994.

Câu hỏi :

Mukai Chiaki, the first female Japanese astronaut,                15 days aboard the space shuttle Columbia in space before it                to the Earth on July 23, 1994.

A. was spending – was returning

B. spent – was returning

C. spent – had returned

D. had spent – returned

* Đáp án

* Hướng dẫn giải

Chọn đáp án D

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