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Khủng long đã biến mất cách đây 65 triệu năm. Tại sao lại thế ? Một số nhà khoa học cho rằng một tảng đá lớn gọi là một tiểu hành tinh rơi xuống Trái đất từ không gian. Điều này khiến Trái đất lạnh hơn và không còn thức ăn nào cho khủng long ăn.
Con khủng long nổi tiếng nhất là T-Rex (Tyrannosaurus Rex). Nó dài 14 mét và cao 5.5m: lớn hơn ngôi nhà! Đuôi mạnh mẽ của nó đã giúp nó di chuyển nhanh chóng. Nhưng không ai biết tốc độ nó có thể chạy nhanh như thế nào. Răng của nó dài 36 cm và nó ăn thịt. Bạn có thể nhìn thấy bộ xương T-Rex tại một số viện bảo tàng.
1. Are you coming tonight?
2. The Sun rises in the Earth.
3. They are not visiting the landscapes tonight.
4. Mina goes to school at 6 o'clock everyday.
5. I am reading books at the present.
6. I usually do exercises in the morning. Now, I am walking at the park near my house.
7. Don't forget to take the umbrella. It is raining.
8. I can't hear what William is saying because his children are screaming so loudly.
9. Liam is wearing his pink T-shirt today, but usually he wears the blue one.
10. Sit down! A strange dog is running to you.
11. My mom often buys meat from the butcher's.
12. My brothers are not drinking coffee at the moment.
13. Look! Those people are climbing the mountain so fast.
14. That girl is crying loudly in the party now.
15. These students always wear warm clothes in summer.
16. What are you doing in the kitchen?
17. I never eat potatoes.
18. The 203 bus sets off every fifteen minutes.
19. Tonight we are not going to our teacher's wedding party.
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1. Peter was playing a video game when his brother, Jack, entered the room.
2. I was studying for my English test when my mother came home from work.
3. Emma was washing the dishes when the telephone rang.
4. I ate a sandwich while my parents were drinking coffee.
5. I was watching a DVD when my cat jumped on me.
6. Susan was studying in her room when she heard the noise.
7. What were they doing at eleven p.m. last night – it was so noisy?
8. I was eight years old when my elder sister taught me how to ride a bike.
9. John did not go to school last week because he was ill.
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1. The Smiths weren't painting their house last weekend.
2. Tom was cleaning the living room when Jane arrived.
3. Were the students writing an essay in class this morning?
4. Frank was fixing his car when his mobile rang.
5. Mark wasn't wearing a coat when it started to rain.
6. He was driving to work this morning when Anna called.
7. While my parents were working, I was studying at home.
8. I was walking home when I tripped and fell.
9. At 8 o'clock last night, we were having dinner at a Chinese restaurant.
CÂU NÀY LÀ :KHÔNG GIAN PHÍA TRÊN TRÁI ĐẤT MÀ BẠN CÓ THỂ NHÌN THẤY KHI NHÌN LÊN, NƠI MÂY VÀ MẶT TRỜI,MẶT TRĂNG VÀ CÁC VÌ SAO XUẤT HIỆN .
Không gian phía trên trái đất mà bạn có thể nhìn thấy khi nhìn lên, nơi xuất hiện các đám mây và mặt trời, mặt trăng và các vì sao.
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