Trình bày phương pháp tách các chất ra khỏi nhau từ các hỗn hợp sau : Axit axetic và etyl axetat

Hoạt động của Việt Nam Quang phục hội; cuộc vận động khởi nghĩa của Thái Phiên và Trần Cao Vân; cuộc khởi nghĩa Thái Nguyên có điểm chung là

A. các cuộc khởi nghĩa vũ trang.

B. lực lượng chính là binh lính.

C. do văn thân, sĩ phu lãnh đạo.

D. được một vị vua nhà Nguyễn làm lãnh tụ tinh thần.

The goverment conducted a campaign to improve road....

A) safe b) safely c)safety d) safer

1. Do you like sport?

=> Yes, I do.

2. What sport do you like?

=> I like badminton.

3. How often do you play it?

=> About four times a week.

4. How many calories do you have day?

=> I have about 650 calories a day.

5. Give some health tips?

=> Do exercises

Have a balanced diet

Bài 1 : Viết lại câu sao cho nghĩa không đổi

1. I walk to school in fifteen minutes every morning -> It takes me fifteen minutes walking to school every morning.

2. Minh has fewer books than his brother does -> Minh's brother has less books than Minh does.

3. Do you want me to help you withh these cases ? -> Shall I help you with these cases?

4. The film is very interesting -> How interesting film is!

What an interesting film !

11.it was............ interesting book that I couldn't stop reading it

a. so b.such c.such an

12.I wish I ......... to buy a new dress for the party

a. can afford b.could afford c. would afford

13. ............... the bad weather, we had a wouderful holiday

a. despite b.although c.whereas

14. ................. an amazing view!

a. how b.so c. what

15. if you ............................. your dinner, you can watch TV

a. had finished b.have finished c.would finish

16. ..................... you're tired, I'll make the dinner.

a. since b.because c.for

17. if I .......................... you, I would see a doctor.

a. am b. will be c.were

18. the bag was ................... heavy that I couldn't carry it

a. such b. so c.such a

19. ...................... you wear warm clothes, you will catch a cold.

a. unless b.if c. providing

20. this is the car............ I repaired the week

a. who b. which c. where

1. I / go swimming / yesterday.

=>..I went swimming yesterday...........

2. Mrs. Nhung / wash / the dishes.

=>......Mrs.Nhung washed the dishes.................

3. my mother / go shopping / with / friends / in / park.

=>.......My mother went shopping with friends in the park................

4. Lan / cook / chicken noodles / dinner.

=>........Lan cooked chicken noodles for dinner.................

5. Nam / I / study / hard / last weekend.

=>......Nam and I studied hard last weekend.................

6. my father / play / golf / yesterday.

=>.......My father played golf yesterday...................

7. last night / Phong /listen / music / for two hours.

=>......Last night Phong listen to music for two hours..................

8. they / have / nice / weekend.

=>........They had a nice weekend.................

9. she / go / supermarket yesterday.

=>......She went to the supermarket yesterday.......................

10. We / not go / school last week.

=> ......We went to school last week...........

She is too young to ride a motorcycle.

-> She isn't young enough to ride a motorcycle.

The test is so difficult and I cannot do it/

-> The test isn't easy enough for me to do.

Ba enjoys telling jokes.

-> Ba is interested in telling jokes.

Khoanh đáp án đúng

1. The summer vacation _______ for almost three months

a. Longs b. Lasts c. Spends d. Finishes

2. When there is _______ work , he goes to the city

a. Many b. Fewer c. Less d. Least

3. What will you do ________ your summer vacation ?

a. During b. For c. In d. With

4. Who's taking ________ of the family when your mother's day ?

a. Part b. Day c. Care d. Time

5. Mr.Tuan has ________ days off than Mr.Jones

a. Many b. Less c. Fewer d. Much

6. My brother likes watching soccer. - _______

a. I do , too b. So like I c. I am , too d. So I do

7. Hoa is a _________ student and she studies hard

a. Keen b. Lazy c. Fast d. Nervous

8. Thanh helps children to learn. She is a _________

a. Doctor b. Musician c. Teacher d. Writer

Chi dạng thích hợp của từ trong ngoặc

1. I find History really _interesting_______ ( interest)

2. I hope you'll join in our Christmas _celebration_______ (celebrate)

3. He earns __more_______ money than his wife ( much )

4. Summer holiday is the __longest_______ holiday in VietNam ( long )

5. I wil __definitely_______ be back by ten ( definite )

6. Vietnamese __students________ have fewer vacations than American ones (study)

7. We should do more to help __homeless______ people ( home )

8. She knows _less______ than I do about it (little)