Each nation has many people who ______ take care of others.

Câu hỏi :

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

A. volunteers

B. volunteer

C. voluntary

D. voluntarily

* Đáp án

D

* Hướng dẫn giải

Đáp án D

Copyright © 2021 HOCTAP247