Trình bày và giải thích đặc điểm của sông ngòi khu vực Bắc Á

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ko có giá trị kinh tế

- một số ngành: giao thông đường thủy,du lịch

ở Bắc Á, mạng lưới sông dày và các sông lớn đều chảy theo hướng từ nam lên bắc ,mùa đông nước đóng băng,mùa xuân có lũ do băng tan. các sông ở bắc á có giá trị chủ yếu về giao thông và thủy điện.

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Choose the best answer from the four options given (marked A, B, C, or D) 6. My house needs …………….. A. to build B.building C. was built D. has been built 7. He suggested ………… a soccer match A. watch B. watching C. to watch D.watches 8. They have driven a car ……… 8 years A. since B. in C. for D. at 9. His house looks very large and beautiful. It is _________house. A. a seven-room B. a seven-rooms C. seven room D. seven rooms 10. If you get up early, you _________late. A. weren't B. wouldn't be C. aren't D. won't be 11. It's very hot today. I wish I _________on the beach now. A. am B. was C. were D. had been 12. When he lived in the city, he _________to the theater twice a week. A. uses to go B. has gone C. used to go D. was going 13. My father wishes I _________too much time playing computer games. A. don’t spend B. didn’t spend C. haven’t spent D. is spending 14. It’s very interesting …………in a swimming pool A. to swim B. swimming C. swim D. swam 15. If I were a flower, I _________a sunflower. A. was B. were C. will be D. would be 16. If he …………well, he’ll become an artist A. drew B. will draw C. would draw D. draws 17. It is nearly 3 months _________he visited his parents. A. while B. during C. since D. when 18. My sister enjoys …………….comics. A. reads B. reading C.to read D. will read 19. If we _________enough time, we’ll study this exercise more carefully. A. will have B. have C. had D. would have 20. What would you do, if you _________a UFO? A. see B. saw C. would see D. had seen

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