Câu 4: Cho 18,6g hỗn hợp A gồm Fe, Zn tác dụng vừa đủ với Vml dung dịch HCl 7,3% ( d= 1,19 g/ml). Sau phản ứng thu được 6,72 l khí H2 ở đktc
a) Tính thành phần % khối lượng của mỗi kim loại trong hỗn hợp ban đầu.
b) Tính khối lượng muối thu được.
c) Tính V của HCl cần dùng .
1. Simon is a funny student. He always makes me smile.
……………………………………………………………………………..
2. The choir was outstanding! There were ten singers. All of them could sing well.
……………………………………………………………………………..
3. John remembers a time. He couldn't speak English then. Fortunately, he is really good now.
……………………………………………………………………………..
4. Annie and Chilton is a lovely Chinese couple. They work really hard.
……………………………………………………………………………..
5. That is the dilapidated, miserable hotel. My friend made me stay in it.
……………………………………………………………………………..
6. Vincent has four kittens. One of them is adorable.
……………………………………………………………………………..
7. My girlfriend is an architect. She is very intelligent.
……………………………………………………………………………..
8. I've got two brothers. Neither of them can swim.
……………………………………………………………………………..
9. Our computerkeeps crashing.We only bought two months ago.
……………………………………………………………………………..
10. Everyone in my family always enjoy the dishes. I cook them.
……………………………………………………………………………..
11. That's the painting. We paid for it over a thousand pounds.
……………………………………………………………………………..
Choose the correct answer
21) He had so ____ things to do.
A. many B. a lot of C. much D. little
22) The mixture looks rather dry. Maybe you should add ____ water.A. a few B. few C. a little D. little
23) We’re having a big party. We’ve invited ____ friends.
A. a lot of B. much C. many of D. no
24) Could I try ____ wine?
A. a little B. a few C. little D. few
25) Don’t drink ____ wine. It’s bad for your health.
A. so much B. a few C. so many D. many
26) ____ my students are familiar with this kind of school activities.
A. Most B. Most of C. A few D. Few
27) He had spent ____ time writing an essay about his childhood.
A. a large number of B. a great deal of C. a few D. many
28) Peter has spent ____ time and money on stamp collecting.
A. a few of B. many of C. a great deal of D. a large number of
29) I have got ____ money.
A. a few B. many of C. some D.a small number of
30) How ____ furniture do you think there is?
A. many B. much C. few D. a lot of
31) Why don’t you take a break? Would you like ____ coffee?
A. few B. some C. many D. much
32) He drank ____ wine last night and gets sick now.
A. too many B. too much C. few of D. a large number of
33) Give me ____ examples, please!
A. a few B. a little C. few D. little
34) Is there ____ water in the glass?
A. any B. some C. many D. lots of
35) Peter doesn’t want ____ to do.
A. something B. anything C. nothing D. everything
36) Can you speak French? – Yes, ____.
A. a few B. few C. a little D. little
37) Thank you very ____ for your help.
A. many B. much C. a lot of D. little
38) He is very rich. He has ____ money in the bank.
A. a great deal of B. many C. a large number of D. few
39) She put too ____ sugar in the coffee. It became so sweet that I couldn’t drink it.
A. many B. much C. few D. little
40) I have got ____ homework to do.
A. many B. few C. a lot of D. a large number of
GIÚP TỚ VỚI!!!!!!!pls!!!!!!!!!!!!!!
I.Combine these sentences using relative pronouns. Put the commas where necessary :
1. I saw the woman. She wrote the book.
2. The pencil is mine. The pencil is on the desk.
3. The boy will be punished. He threw that stone.
The boy will be punished
4. Ann is very friendly. She lives next door.
5. The little girl ate sweets the whole way. She sat next to me on the coach.
6. The gentleman was very young. He was introduced as the most successful businessman.
7. His book became the best seller. It was punished last year.
8. The picture has been stolen. You were talking about it.
9. The book was rather difficult. I gave him that book.
10. Can you understand the question? He asked you the question last time.
11. The dress is beautiful. She is wearing that dress.
II. GRAMMAR AND STRUCTURE
4. “That’s an excellent drawing, Hoa.” - “________”
A. Well done B. I’m sorry
C. That’s very kind of you to say so. D. That’s a good idea.
5. “Is Tina your sister?” “________”
A. Yes, she does. B. Yes, she is. C. Yes, I do. D. Yes, I am.
6. The Smiths will move to Paris, but we hope to ________with them
A. keep at touch B. keep touch C. keep in touch D. keep on touch
7. Rice ________ in tropical countries.
A. growing B. is grown C. grew D. grows
8. She hasn't written to me ________we met last time.
A. since B. ago C. for D. before
9. My friend was very ________when he got the job.
A. surprising B. surprises C. surprise D. surprised
10. The train from Madrid arrives ________noon.
A. on B. over C. in D. at
11. -“You haven’t read this article on the website, have you?” -“________”
A. No, you don’t. B. No, you haven’t. C. No, I haven’t D. No, I don’t.
12. “I think we should use shower instead of bath to save water.” “________”
A. I’m sorry. B. Yes, I’d love to. C. Yes, I’ll take it. D. That’s a good idea!
13. I remember ________ you before, but I have forgotten your name.
A. met B. to meet C. meeting D. meet
CẢM ƠN M.N NHIỀU<3
HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!
III. ERROR RECOGNITION
Choose the underlined word/ phrase (A, B, C or D) that needs correcting.
14. He is enough strong to carry the heavy luggage.
A B C D
15. Phil, that went to bed early, couldn’t finish his homework.
A B C D
16. I learned English for over ten years now.
A B C D
GIÚP MÌNH VỚI!!!!!!!!!!!!!!!!!!!PLSSSS
IV. Rewrite these sentences:
1. Lan isn’t here now and I want she is here.
-> I wish……………………………………………
2. We can’t go out because it is raining.
-> We wish………………………………………………
3. It’s a pity I can’t speak English well.
-> I wish……………………………………
4. He likes playing soccer.
-> He is….......................................................................................................
5. She is too young to go to school alone.
-> She is not…………………………………………
6. Reading book gives me pleasure.
-> I…………………………………………………
7. Tuan is too short to play volleyball.
->Tuan wishes……………………
8. The journey to Ba’s village is interesting.
-> It is………………
số thứ nhất 7,2
số thứ hai 13,3