Bài IV. (3,5 điểm). Cho tam giác ABC có ba góc nhọn, hai đường cao BM, CN cắt nhau tại H. 1) Chứng minh tam giác HNB đồng dạng với tam giác HMC giúp e vs ạ em sẽ thả sao

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Turn into the passive voice 23. 23/ They hadn’t built the bridge when we first came here……..………………………………………. 24/ People don’t learn a foreign language in a short time…………………………………………….. 25/ Did anyone ask any questions about me ?.......................................................................................... 26/ Henry wrote that book years ago, didn’t he ?..................................................................................... 27/ What sort of research are they doing in the laborotary ?.................................................................. 28/ You should place matches out of reach of children………………………….. 29/ People say that inflation is getting out of control………………………………………… 30/ We’ll have finished all the work by the weekend…………………………………………. 31/ I heard her singing very beautifully……………………………………………………. 32/ Scientists started discovering the universe thousands of years ago. ………………………………………………………………………………………………………… 34/ The robbers forced the bank manager to hand over the money. ………………………………………………………………………………………………………… 35/ They let us go………………………………………………………………………………….. 36/ The police stopped Tom on the highway and made him show his I.D card. 37/ Write your address on the back of the cheque…………………………………………………….. 38/ Where did your child find the keys ?.................................................................................................. 39/ Some people think he is a dangerous criminal…………………………………………………….. 40/ They will have to sign these documents………………………………………….……………….. 41/ The workers are going to pull down that old building……………………….…….………………. 42/ No one told me the truth…………………………………………………………………………… Giúp mình với mình đnag cần rất gấp ạhh