His grandfather suddenly slipped and fell ______.

Câu hỏi :

His grandfather suddenly slipped and fell ______.

A. since he has gone downstairs

B. as he went downstairs

C. because he was going downstairs

D. when he was going downstairs

* Đáp án

D

* Hướng dẫn giải

Dịch: Cụ ông bất ngờ trượt chân ngã khi đang đi xuống cầu thang.

Copyright © 2021 HOCTAP247