Tìm và sửa lỗi sai: Not having read the book before, he didn't know who is the author. A. not having read B. before C. know D. is the author
Tìm và sửa lỗi sai: Not having read the book before, he didn't know who is the author.
A. not having read
B. before
C. know
D. is the author