Cho 20 điểm phân biệt trong đó có đúng 7 điểm thẳng hàng , ngoài ra không có 3 điểm nào thẳng hàng. cứ qua hai điểm ta vẽ được một đường thẳng. Hỏi từ 20 điểm đó vẽ được tất cả bao nhiêu đường thẳng ? nhanh ạ

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II. Mark the letter A, B, C or D on your answer sheet that is best made from the given prompts in the following sentences. 46. The internet / be / convenient way / get / information A. The internet is a convenient way to get information. B. The internet is convenient way of getting information. C. The internet is a convenient way getting information. D. The internet is convenient way to get information. 47. She / asked / me / where / I / come / from. A. She asked me where I come from. B. She asked to me where I came from. C. She asked me where I came from. D. She aske me where did I come from. 48. We / start / walk / village / thirty minutes. A. We started to walk about the village about thirty minutes. B. We will start walking of the village for about thirty minutes. C. We were starting to walk to the village for about thirty minutes. D. We started to walk into the village for about thirty minutes. 49. My father / often / give / me / advice / how / save / energy. A. My father often gives me advice on how to save energy. B. My father often gives to me advice on how to save energy. C. My father often gives me advice how about saving energy. D. T My father often gives me advice about how to save energy. 50. Everybody / like / independent. A. Everybody likes independent. B. Everybody likes to be independent. C. Everybody like to be independent. D. Everybody like being independent. 11. Shall we go out for a ride this weekend? How about ………………………………………………. 12. I usually got up late last year, but this year I often get up early.  I used to ……………………………………………. I used to get up late last year. 13. Mary always went swimming after school last year.  Mary used to ……………………………………….. 14.Let’s visit our form teacher . → What about ………………………….. ? 15.Why don’t we go swimming ? → How about ……………………………..? 16.What about going to the cinema ? → I suggest that ………………………… 18. Learning English is interesting . → It’s ……………………………………………….. 19. He spent 20 minutes playing soccer last Sunday . → It took …………………………………………… 20.I would like you to help me move this table. →Do you mind……………………………………………………… 21. When I was young, my family lived in the countryside. →My family used to………………………………………………… 22. He is fond of practicing speaking English with foreign people. →He enjoys………………………………………………………………. 23. We have learnt English for 3 years. →We began…………………………………………………………………. We began to learn English 3 years ago. 24. John smoked a lot a year ago, but now he doesn’t smoke any more.  John used to...................................................... 25. I suggest that we should close all the windows in winter.  I suggest ............................................................ 26. We have learned English for 4 years.  We began ............................................................... 27. The children are interested in going swimming in the river.  The children enjoy ................................................................. 28. I think it would be a good idea to take the train.  I suggest …………………………………….. 29 Shall we go for a picnic this weekend?  How about …………………………………...