tra loi giup minh cau 1 2 4 5 nhe moi nguoi

Giúp mình câu cuối vs nha mấy ban.

Giúp e hai câu này với ạ.đúng E Veto cho 5 sao luôn t

1. A __________is a type of book that is based on imagined scientific discoveries of the future. * A. novel B. science fiction book C. fiction book D. romance 2. Jack ................ yet, otherwise he would have telephoned me * A. mustn't have arrived B. shouldn't have arrived C. can't have arrived D. needn't have arrived 3. Why wasn't your boyfriend at the party last night?" - "He ................. the lecture at Shaw Hall. I know he very much wanted to hear the speaker" * A. should have attendedB. can have attendedC. was to attendD. may have attended 4. “I stayed at a hotel while in New York.” - “Oh, did you? You _____ with Barbara.” * A could have stayed B. could stay C would stay D. must have stayed 5. We _____ last night, but we went to the concert instead. * A. must have studied B. might study C. would have studied D. would study

IV. Put the words/ phrases from the box in each space to complete the following sentences. Zebra crossing - railway station - speed limit - traffic jams - road user- means of transport - driving license - safety helmet - road safety - train tickets 1. The government has introduced a new __________________ campaign in an attempt to reduce the number of road accidents. 2. A __________________ is a hard hat which covers and protects the whole head, worn especially by motorcyclist. 3. We looked on our map to find the way to the __________________. 4. Roadworks have caused __________________ throughout the city centre. 5. A __________________ is a place on a road at which vehicles must stop to allow people to walk across the road. 6. You should know the regulations in order to become a good ______________. 7. A ________________ is an official document that shows you are able to drive. 8. Slow down because you’re breaking the __________________. 9. We needed to get to Ha Noi, but we had no __________________. 10. I have two ___________ available to go to Lao Cai. Would you like to go with me to Sa Pa?

Một mảnh đất hình tam giác vuông có tổng 2 cạnh góc vuông là 60m.cạnh góc vuông này bằng2/3 cạnh góc vuông kia.Tính diện tích mảnh đất đó

Cho mình biết đáp án bài này với em cảm ơn ạ

. Cho 18,05 gam hỗn hợp gồm Al và Fe tác dụng vừa đủ với dung dịch HCl 1,5M (có dư), sau phản ứng thu được 10,64 lít H2 (đktc). a) Tính % khối lượng mỗi kim loại trong hỗn hợp. b) Trung hòa dung dịch HCl dư cần vừa đủ 250 ml dung dịch NaOH 1M. Tính thể tích dung dịch HCl ban đầu đã dùng. c) Tính CM các chất có trong dung dịch sau phản ứng. Xem thể tích dung dịch thay đổi không đáng kể.

Giúp mình 2 câu trắc nghiệm với!Mình cảm ơn

20-|x-3|=12