Not having read the book before, he didn't know who is the author
Question: Find the mistakes the sentences: 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
Question: Find the mistakes the sentences: 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
Đáp án: D
Giải thích:
- Câu ở dạng khẳng định => Từ để hỏi + S + to be
- Ngữ cảnh ở quá khứ => to be was
=> who the author was
Dịch: Chưa từng đọc quyển sách này trước đó nên anh ấy không nhớ tác giả là ai.