Viết lại câu sao cho nghĩa không đổi:

1. It is dangerous to swim here

--> Swimming......................................................

2. I like readings book

--> I am..................................................................

3. I spent 3 days visiting Dai Lai

--> It took................................................................

4. Playing soccer is interesting

-->It is.......................................................................

5. I don't have a key, so i can't open the door

--> If..........................................................................

6. They had repaired their house before the typhoon came

--> Their house...........................................................

7. Jane said" I am doing my job"

--> Jane said.................................................................

Help me. thanks very much!!!

-Phản xạ có điều kiện là phản xạ được hình thành trong đời sống cá thể, là kết quả của quá trình học tập, rèn luyện, rút kinh nghiệm.

- Phản xạ không điều kiện là phản xạ sinh ra đã có, không cần học tập và rèn luyện.​

- Mối liên hệ giữa phản xạ có điều kiện và qua trình học tập, rèn luyện.

Phản xạ có điều kiện cũng giống như 1 thói quen.

Bạn tham khảo nhé! Ý cuối cùng thì mình chỉ ghi vậy thôi, chứ chưa chính xác lắm đâu☺

k minh trước mình tl cho kq là 16

Mình cần gấp! Làm ơn giúp với!!!

Cho △ABC có 3 đường cao AD, BE, CF cắt nhau tại H

a) Chứng minh △AFH ∼ △ADB

b) Chứng minh BH.HE = CH.HF

c) Chứng minh △BFH ∼ △CFA

d) Chứng minh △BFD ∼ △BCA

e) Gọi M là giao điểm của DF và AC. Chứng minh MA.MC = MF.MD

Choose the best option that best completes each sentence

1. It's impolite__________people about their salary

A. asked B. to ask C. ask D. asking

2. Don't ________in class

A. talking B. to talk C. talked D. talk

3. Don't forget___________your dictionary with you to class

A. to bring B. bring C. bringing D. to bringing

4. Her classmates started____________when she won the race

A. to shout B. shouting C. shout D. shouted

5. You should remember___________your warm clothes when it's cold

A. to wear B. wearing C. wear D. are wearing

6. We are very sorry for____________much noise last night

A. to make B. making C. made D. make

7. The bedroom needs___________now

A. decorate B. decorated C. decorating D. to decorate

8. She went out with her friends without____________for permission from her parents

A. ask B. to ask C. asked D. asking

9. Every day I spend two hours____________English

A. practise B. to practise C. practising D. practiced

10. In general, my father doesn't mind_________the housework, but he hates to do the cooking

A. do B. doing C. done D. to do

11. Mr.Minh__________wearing a crash helmet when he goes somewhere on his motorbike

A. used to B. is used to C. is using D. used

12.____________television is also a means of learning English

A. watch B. watching C. to watch D. watched

13. You should____________a lot of grammar exercises if you want to improve your writing

A. did B. doing C. done D. do

Help me. Thanks very much

Complete each sentence with the correct form of the verb in brakets:

1. The children promised(play)...............more quietly. They promised(make, not)

.............................so much noise

2. Linda offered(look after).........................my cat while i was out of town

3. You shouldn't put off(pay)......................your bills

4. We wish us(receive).........................a lot of toys and presents form Santa Clause

5. Do you mind(process).............................these film again?

6. Where would you like(have).........................lunch?

7. Liz encouraged me(throw)........................away my old running shoes and (buy).....................a new pair without holes in the toes

8. He's expecting(make)......................a trip to Ha Long Bay

9. Sally reminded me(ask)........................you(tell)...................Bob(remember).......................(bring)........................his soccer ball to the picnic

10. I'm pleased(see).....................you

11. When i'm tired, i enjoy(watch).....................television. It's relaxing

12. They denied(destroy)..............................the flower beds in th schoolyard

13. They warned us(not go).............................near the beach.

Help me.