Bài 1: Khoanh tròn đáp án đúng. 11. I didn’t finish my homework __________ I was seriously ill yesterday. A. when B. though C. since 12. James decides to save money from now_____ he has enough money to travel this summer. A. so that B.though C. when 13. __________ we have been friends for only one year, we deeply understand each other. A. If B.Though C. Once 14. Mr. Smith doesn’t like dogs, __________ his wife loves them. A. when B. so that C. whereas 15. I was cycling home yesterday __________ I saw Jim standing near the fountain. A. when B. while C. since Bài 2: Hoàn thành những câu sau đây bằng những liên từ cho sẵn. since although while unless before as though when as long as because in case 1.___________ Jim came home, he realized that someone had broken into his house. 2. You’d better bring your raincoat ___________ rain pours down. 3. They have been colleagues ___________ they graduated. 4. ___________ Jim puts more effort in his studying, he won’t catch up with his classmates. 5. My mother always reminds me to wash my hands _______ I have meals. 6. We will go picnicking ___________ the weather is fine. 7. James behaved ___________ nothing had happened. 8. I can’t make it on Saturday ___________ I will be fully occupied. 9. When I got home; my father was mowing the lawn ___________ my mother was watering theflower beds. 10. ___________ I don’t get on well with Mary, I really admire her intelligence and beauty. Bài 3: Nối những mệnh đề ở cột A với những mệnh đề ở cột B để tạo thành câu hoàn chỉnh. A B 1. Jane didn’t realize her mistake a. when snow started to fall. 2. They were playing in the backyard b. though it is distant from our house. 3. if you show your attempt in your work, c. before they moved here. 4. This couple had been in New York City for 2 years d. I still travel by public transportations. 5. My mother often shops at the local supermarkert e. so that l will have a decent job in the future. 6. It has been ages f. you may get promotion soon. 7. Itry to study hard g. until her mother pointed it out for her. 8. Even if I own a car, h. since we last encountered. 1 – _________ 2 – _________ 3 – _________ 4 – _________ 5 – _________ 6 – _________ 7 – _________ 8 – _________