Before the invention of the printing press, books have been all printed

Câu hỏi :

Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction.

A. Before

B. the printing

C. have been

D. by hand

* Đáp án

C

* Hướng dẫn giải

Đáp án C

Copyright © 2021 HOCTAP247