Trong các ví dụ về vật đứng yên so với vật mốc sau đây, ví dụ nào sai ? A: Cái cặp để trên mặt bàn đứng yên so với mặt bàn. B: Trong chiếc đồng hồ đang chạy, đầu kim đứng yên so với cái bàn. C: Trong chiếc ô tô đang chuyển động, người lái xe đứng yên so với ô tô. D: Trên chiếc thuyền đang trôi theo dòng nước, người lái thuyền đứng yên so với chiếc thuyền.

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Ex 5: Fill in each blank with one of the conjunctions "and/ or/ but/ so/ because/ although" to complete the sentences. 1. Is her child a boy ……………a girl? 2. I forgot to bring the map, ……………….I got lost. 3. He failed the examination …………………..he didn't study hard. 4. Lien won the match ………………………. she was injured. 5. My new classmate is quite friendly …………………… sociable. 6. I don't like watching films on TV …………………….. I like watching them at the cinema. 7. She likes watching cartoons ………………………….they are colorful and funny. 8. He helps his friends a lot …………………. he is very busy. 9. Lan sings very well …………………..she cannot sing in front of many people. 10. The movie was very boring ……………….. we went out to go shopping. Ex 6: Fill in each blank with a suitable clause to complete the compound sentences. A. because it is bad for your health B. and this programme is on VTV3 C. so you will be fat; because the old one is broken; D. though it's not good for your health; E. but it is broadcast too late 1. You should eat less junk food .................................................................................................................................. 2. I want to watch this programme ............................................................................................................................ 3. My father will buy a new television …………………………………………………………………………………. Ex 7: Fill in each blank with a suitable clause to complete the compound sentences. A. Though his clothes are old B. and don't enter this room C. so TV is a good way to entertain D. Although he is young E. or you can do more exercise F. because it's not good for your eyes 1. ……………………………they look very clean and of good quality. 2. Don't spend too much time watching TV…………………………………………………… 3. You can eat less, ……………………………………………………………