Câu 5. Cho 11,3g hỗn hợp gồm Mg và Zn tác dụng vừa đủ với dung dịch HCl thu được 6,72 lít
H2 (đktc).
  a) Tìm % khối lượng của Mg và Zn có trong hỗn hợp ban đầu.
  b) Tính nồng độ mol/l của 200 ml dung dịch HCl đã phản ứng.
 c) Tính CM của mỗi muối tạo thành sau phản ứng. (giả sử thể tích không đổi).

Cho 26,25g hỗn hợp gồm Mg và Al tác dụng vừa đủ với dung dịch HCl 10% thu được 30,8 lít H2 (đktc).

a) Tìm % khối lượng của Mg và Al có trong hỗn hợp ban đầu.

b) Tính khối lượng dung dịch HCl cần dùng.

c) Tính C% của mỗi muối tạo thành sau phản ứng.

Give the correct form of verbs:

It was late, so we decided (take) ________ ____________ a taxi home.

I think she will flatly refure (help) _____ ______________ us.

We should avoid (give) ___________ __________ an answer immediately.

The boy should practise (play) ________ __________ soccer more.

My mother can’t stand (stay) ________ ______ at home without (do)_____ ______ anything.

They have finished (paint) _________ _____________ our apartment at last.

Don’t forget (lock) ______ ____________ the door!

The driver stopped (have) ______ ________________ a coffee because he felt sleepy.

I wasn’t allowed (drive) _______ _____________a car.

Would you mind (give) ______ __________me a hand?

He used  to( smoke)______________ 43 cigarettes a day

They are used to (live) _________ ___________ in this country.

The boy has promised (not/go) _____ _____________ to school late.

She tried to be serious, but she couldn’t help (laugh) _____ ______________.

They didn’t make me (explain) _______ ________ why.

 Verb Tenses:

1. I (visit) ______ ___________ my grandma last month.

2. I (be) ______ ________to New York three times this year.

3. She (not/get) ____ ____________a job so far.

4. I am reading this novel. By the time you come back from work I (finish) _________________ it.

5. Her father (die) _________ __________ when she was a small girl.

6. Almost everyone (leave) ___________________ for home before we arrived.

7. Look! The bus (come) _______ ___________. You had better be hurry.

8. She understood the film because she (read) _______ _________ the book.

9. My husband (not/drink) ________ _____________ beer. He just loves coffee.

10. We (know) _______ ____________ each other for ages.

1.She has made a _________________recovery. (miracle)

2.The school believes in  ______  teaching methods. (interact)

3.Mr Joe managed the conference so _______________   . (capable)

4.He gave me strict _______________ to get there by eight o'clock. (instruct)

5.She usually hits the ball with great ______________. (accurate)

II.Different pronunciation

1/A. wonder B. period C. company D. ton

2/ A. site B. kilo C. might D. nine

3/ A. forest B. sell C. very D. left

4/ A. lastly B. sorry C. fly D. firstly

5/ A. food B. mood C. noon D. cook

1. ___________ Jenny knew the good news, she told her parents.

A. By the time B. While C. As soon as D. Whenever

2. John is a university student, _________ is Helen.

A. too B. and C. also D. so

3. She said she ________.

A. was a teacher B. will be a teacher    C. is a teacher D. can be a teacher

4. Emily said that her teacher ___________to London ___________.

A. will go / tomorrow                   B. went / tomorrow

C. would go/ the next day D. had gone/ the next day

5. He told me that he ___________ his mom the previous night.

A. calls B. would call C. has called D. had called

6. Laura said she had worked on the assignment since________.

A. yesterday B. two days ago       C. the day before D. the next day

7. We'll have to go without John if he_____________ soon.

A. won't arrive B. will arrive C. arrives D. doesn't arrive

8. If she ___________ to see us, we will go to the zoo.

A. came B. come C. comes D. is coming

9. If my father ________ me up, I'll take the bus home.

A. doesn’t pick B. don’t pick C. not pick             D. picks

10. Last year, I (take)_____________a holiday in Hanoi.

A. take B. will take C. had taken D. took

11. We________Peter since he moved to work in our company.

A. had known      B. knew C. have known D. know

12. I know that he __________ in the library at this moment.

A. was working B. works C. are working D. is working

13. His doctor advised him __________ smoking.

A. to give up B. give up             C. giving up           D. gave up

14. Students ________________ marks in the test are high will be given a book by Ms. Nga.

A. whom B. which C. whose D. that

 “I’ll drive you and your friends to school tomorrow”, said her father

Her father told ________________________________________________

“My mom was preparing dinner in the kitchen at 5pm yesterday.” Daniel said.

Daniel said _______________________________________________

.“I have just received a gift from my uncle this morning.” My girlfriend said

________________________________________________