Một con robot được thiết kế có thể đi thẳng quay một góc 90 độ sang trái hoặc sang phải robot xuất phát từ vị trí Á đi thẳng 1m quay sang trái rồi đi thằng 1m quây sang phải rồi đi thẳng 3m quay sang trái rồi đi thẳng 3m thì đến vạch đích B a) vẽ hình biểu diễn đường đi của robot b) tính khoảng cách giữa đích và nơi xuất phát của robot

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I. Choose the underlined word or phrase (marked A, B, C or D) in each sentence that needs correcting. 1. My father will take a new calendar on the wall, and he'll also repaint the living A B C room before Tet. D 2. My mother will do shopping to buy some new clothes for our family, so I'm A B C D very happy now. 3. At Tet, I will receive lucky money at red envelopes after saying my nice wishes A B C D to our parents. 4. This year, we'll come back to our hometown so we must celebrate Tet A B C together with my grandparents. D 5. There are some beliefs that people will succeed when they break things A B C D during Tet holiday. 6. Look over there! An old man can't cross the street so we would like to help A B C D him now. 7. We should buy and burn fireworks because it will be dangerous. A B C D 8. Ho Chi Minh City is famous with its markets, museums or high buildings. A B C D 9. I sit in front of the computer too much so I need plaster to put on my back now. A B C D 10. I hope I will have some interesting experiences when I have a trip to Japan during A B C D Tet holiday. 11. The pagoda is much historic and larger than the other ones in this city. A B C D 12. Some tourists say that Son Doong, Sung Sot and Dau Go are some of the greater A B C D caves in Viet Nam. 13. You mustn't take your raincoat in the heavy rain because you may get wet. A B C D 14. Tomorrow, your grandpa will visit us so you should go out with your cousins to play badminton A B C D 15. I like watching TV. There are a good film on TV tonight. A B C D 16. How many childs does your mother have ? A B C D 17. We have Geography every Wednesdays. A B C D 18. If you climb the mountain, you will sees a lot of flowers A B C D 19. There are five bridge across Han River in Da Nang. A B C D 20. They are on holiday for two weeks so they will be here tomorrow.