It was in 1875 ________  joined the staff of the astronomical observatory at Harvard University.

Câu hỏi :

It was in 1875 ________  joined the staff of the astronomical observatory at Harvard University.

A that Ann Winlock

B Ann Winlock, who

C as Anna Winlock

D Anna Winlock then

* Đáp án

A

* Hướng dẫn giải

Phương pháp giải:

Copyright © 2021 HOCTAP247