Đáp án:
1. He has already read that book
2. This book is extremely interesting
3. I haven’t been there before
4. He is seldom on time
5. The elevator operates automatically
6. He never arrives at the meeting on time
7. I saw Dan at the lecture last night
8. He left the office early this afternoon
9. They stayed there quietly all day
10. I shall meet you outside your office at 2 o’clock tomorrow
11. He was born at 10 a.m on July 14th in 1396
12. She will return the book to the library next week
