Hòa tan a gam nhôm bằng thể tích vừa đủ dung lượng HCl 2M. Sau phản ứng thu được 6,72lít khí (đktc) a) Viết phương trình phản ứng b) Tính a c) Tính thể tích dung dịch HCl cần dùng (Al=27)

4.On the island of Alcatraz, there is a famous ………………….., where criminals are kept. (1 Point) D. prison B. flat C. accommodation A. house 5.When you have a blister, prick it with a very clean ……..……and then put a plaster on it. (1 Point) D. knife B. scissors C. stick A. needle 6.Trucks and trains are used to carry farm ……………..to the city. (1 Point) D. cottage A. products C. work B. production 7.My father used ...................... me to school. (1 Point) B. taking C. to take D. take A. took 8.Some of the new horror movies are …………………because they are so realistic. (1 Point) C. frightened A. frightening D. being frightened B. frighten 9.When I arrived, there was a big red car ……………….outside the house. (1 Point) D. parks B. parked A. park C. parking 10.A numbers of questions were ………………..in the discussion.. (1 Point) C. done B. made D. found A. raised 11.Soft ducks feathers ………………..to make pillows. (1 Point) A. will be used D. are using B. are used C. are going to be used 12.We spent a week ……………………..our house. (1 Point) C. repainted B. to repaint D. repainting A. repaint 13.After………….……. the conditions I decided………………for the competition. (1 Point) B. hear / not enter A. hearing/not entering D. hearing/ not to enter C. to hear/ not to enter 14.The only man-made ……………..…..can be seen from the Moon is the Great Wall of China. (1 Point) C. structure A. house D. skyscraper B. building 15.The teacher was very strict. Nobody dared …………….during his lesson. (1 Point) D. talked C. talking B. to talk A. talk 16.“__________to come and have dinner with us?” “I’d love to but I’m very busy”. (1 Point) C. Would you like D. Do you enjoy B. could you please A. would you mind

In the earliest times children got their education directly from parents and other adults. They learned mainly skills for survival. Adults passed down this knowledge through spoken language. Eventually cultures around the world began inventing writing. As societies developed they set up schools to teach reading, writing, maths and other subjects. The first schools were usually just for boys. Most of the students came from rich and powerful families. Often the purpose of their education was religious training. In many cultures the religious leaders formed the highest level of society. Some schools had other purposes as well. Many schools focused on military training. Sometimes youths attended special schools to learn the art of public speaking. These skills were meant to help them become future leaders. Most girls received their education at home. They learned cooking, sewing and other useful skills. Over time education became available to more people, not just the rich and powerful. The governments of some countries set up public systems of education in the 1800s. More schools opened to girls. During the 1900s marks, or grades, became a new measure of learning. Testing became a regular part of formal education. As education became more important to people, teachers’ colleges opened. The requirements for becoming a teacher became stricter. Teaching became a highly respected profession. 28. In the earliest times, children learned mainly skills so that they could________. A. continue to exist B. pass this knowledge down C. invent writing D. make societies develop 29. The word “they” in the passage refers to________. A. cultures B. societies C. schools D. subjects 30. Which of the following is NOT true according to the passage? A. The first schools were usually just for boys from rich and powerful families. B. Art of public speaking was one of the skills that help youths become future leaders. C. During the 1900s, testing became a regular part of formal education. D. In the earliest times, knowledge was passed down through written records. 31. The phrase “set up” in the passage could be best replaced by________. A. made B. based C. founded D. built 32. The best title for the passage could be A. Education in the Earliest Times B. The Development of Education C. Education in Modern Times D. Testing - a Regular Part of Education

Giải giúp mình với mình cảm ơn trc ạ

Ai giúp câu b và c với ạ không câu b thôi cũng đc

Giúp vs mn ơi , khó quá ít nhất 40 tứ giác nha

Cho dãy số 6;9;12;15;18 1.Số hạng 20 của dãy là số nào 2.tính tổng 20 số hạng đầu tiên của dãy số 3.số 5113 có thuộc dãy số trên không .Vì sao

vẽ hình này nha các thành viên nhóm mình ơi

Mng lm hộ mk vs trắc nghiệm thôi nhanh mà

Ai jup mik vs ạ Mik đag cần rất gấp