Penicillin is perhaps the drug which ______ more life than any other in the history of medicine.

Câu hỏi :

Penicillin is perhaps the drug which ______ more life than any other in the history of medicine.

A is saving

B save

C has saved

D have been saved

* Đáp án

C

* Hướng dẫn giải

Phương pháp giải:

Copyright © 2021 HOCTAP247