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Toan123
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Hoà tan 11,2 gam fe vào 1 lượng vừa đủ dung dịch h2so4 thu đc feso4 và khí h2 a) tính kl h2so4 đã tham gia phản ứng b) tính thể tích h2 thu được ở đktc c) tính khối lượng muối feso4 thu được theo 3 cách
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GIÚP MIK 7 CÂU TRẮC NGHIỆM VS , THANKS C1: I and my pen friend ______ Ho Chi Minh's Mausoleum last Sunday. A. visit B. visited C. visits D. visiting C2: She ______ the ocean before she moved to Vancouver. A. had never seen B. have never seen C. never seen D. had never saw C3: By the time my wife came home , I ____ the laundry. A. do B. had done C. did D. have done C4: We keep our food in the fridge _____ it doesn't go bad. A. since B. so that C. although D. after C5: If I _____ free time , I will go swimming. A. have B. has C. is having D. will have C6: Is there ______ apple juice in the fridge , Laura? A. a B. some C. an D. any C7: The teacher __________ out when I arrivedin the classroom. A. goes B. have gone C. has gone D. had gone C7: We _______ Dorothy for many years. A. don't see B. hadn't seen C. didn't see D. haven't seen

will if wish from festival last at dress rarely until New Year is one of the four important traditional (1)........................ in the United States. On New Year’s Eve, most people go to parties. At twelve o’clock (2)............ night, everyone says “Happy New Year!” and they (3)............ their friends and relatives good luck. New Year’s parties usually (4) .............. a long time. Some people don’t go home (5) ...............morning. Another holiday, Halloween, is mainly for children. On this holiday children (6) .............. as witches, ghosts or other characters. Most of the children go (7) ................ house to house and say “Trick or Treat”. (8)................... the people at the house do not give them candy, the children (9) ............play a trick on them. But this (10)...................... happens. Most people give them candy or fruit. Question 2 : Read the text carefully then choose the correct answers (A, B, C, D) to fill in the gap. What do you do if you want to (1)________ a book in a library? If you know the author’s (2)________, go to the author catalogue. Find the title of the book (3)________ check the shelf mark. Make a note of this before you look (4)________ the appropriate shelf. If you do not know the author’s name, go to the (5)________ catalogue. If there (6)________ no title catalogue in the library, go to the subject catalogue. Check all the titles which are under the (7)________ you want. Then check the appropriate card, as with the author catalogue. Next look for the book on the shelf. Let the librarian stamp it (8)________ you take it out of the library. If the book isn’t (9)___________ the shelf, ask the (10)___________ to get it for you. 1. A. find B. look C. take 2. A. address B. title C. name 3. A. and B. or C. but 4. A. at B. for C. after 5. A. title B. author C. subject 6. A. be B. are C. is 7. A. subject B. book C. index 8. A. after B. before C. when 9. A. at B. in C. on 10. A. teacher B. librarian C. student Question 3 : Read the text carefully then choose the correct answers (A, B, C, D) NOISY NEIGHBOURS Do you sometimes have problems with your neighbours such as noise or littering? Well, the people of Pilton in Somerset, England have such problems every summer. For three or four days every year, the village is full of people of all ages who come here for the annual Glastonbury pop music festival. They usually stay in tents, caravans and motorhomes. They leave drink cans and papers all over the streets. The music plays until the early hours of the morning, and you can hear people talking and singing all night. The quiet country village becomes a nightmare to live in and some villagers are even thinking of moving to another village. A villager said last year: “I don’t want to stop the Glastonbury Festival. I just want the fans to enjoy the festival without disturbing normal village life.” 1.What happens in Pilton, Somerset every summer? A. The neighbours are noisy. C. There is a pop music festival. B. There are many villagers. D. The villagers litter the streets. 2.Visitors litter the streets with _____________. A. tents C. motorhomes B. caravans D. cans and papers 3.How long is the pop music festival every year? A. One night. C. Three or four days B. The whole summer. D. The whole year. 4.What is Pilton like during the rest of the year? A. A noisy place. C. A nightmare. B. A quiet village. D. A music concert. 5.The villagers just want to _____________. A. have a normal life as usual C. move far away B. stop the fans enjoying the festival D. put an end to the festival

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