1. Điền những liên từ cho sẵn vào chỗ trống để hoàn thành những câu phức dưới đây.
whereas, unless, since, before, if, even though, unless, while, before, if
1. ________Kien is my friend, I can’t accept his arrogance.
2. My brother is a bookworm, ________ I don’t like reading books.
3. At midnight, my parents were sleeping________I was cramming for exams.
4. ________you have any questions, you ask me after the lesson.
5. We won’t go camping________ the weather is fine.
6. You shouldn’t skip classes________ you really have to.
7. What did you do________ you went to bed last night?
8. In some cultures, you have to pray________you eat.
9. We are very familiar with these areas_________we moved here 15 years ago.
10. ________you travel from the North to the South of Vietnam, you will experience many
interesting customs.
1 Even though
2 wherest
3 while
4 If
5 unless
6 unless
7 before
8 before
9 since
10 When
