Cho tam giác abc vuông tại A . Trên nửa mặt phẳng bờ BC có chứa điểm A vẽ tia Bx vuông góc BC .Gọi Bx cắt AC tại D .c/minh BD^2=CD.DA BD^2/BC^2=DA/CA Vẽ hình giúp mình luôn mình cần gấp

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Giúp mình nhanh với IV. Use the present simple, the present progressive, be going to or will with the verb in brackets. 1.We (go) ……………….to the theater tonight. We’ve got tickets. 2.Mum I promise I (keep) ……………………my room clean. 3.We (tidy) ………………………….. our house next Sunday. 4.I’m sure Matthew (feel)………………….better tomorrow. 5.What…………… you (do)…………………tomorrow evening? –Nothing. I’m free. 6.Do you think Sarah (pass)…………………. The exam? 7.Sally (leave)………………………her job. She told me last week. 8.Look at that rain. I (lend)……………………. You my umbrella. 9.There’s a good film on TV tonight. I (watch)……………………… it. 10.It’s her birthday. She (have)………………………… meal with her friends tonight. 11.I think it (rain) ……………………... Look at those black clouds. 12.Would you like tea or coffee? – I (have)…………………coffee, please. 13.They (buy) ………………………..Alex a computer game for his birthday. 14.Probably Ann (drive)…………………..to the party by herself. 15.These shoes are very well-made. They (last) ………………a long time. 16.The train (arrive) ………………….. in London at 8.15 in the morning. 17.We (fly) …………………to New York at the beginning of September. 18. Her grandmother (be)…………………….ninety next week. 19. The summer term ………………(start) on April 10th. 20. Look out ! We ……………………..(crash)!