mình đóan là số 1006. ko bít có fải ko nữa!

They went on two-week holiday to tunisa

1. If Ba doesn't hurry, he will be late

2. If Hoa doesn't leave now, she won't catch the bus

3. If Hoa doesn't practice, her english won't improve

Are you happy to do charity work ?

1. People can not go skiing in the Alps if there is no snow

2. Unless Isabella runs, she will not catch the bus

3. You will be able to drive my car if you pass your driving test

4. Unless you go to bed early, you will be tired tomorrow

5. Ice will always melt if the air temperature is warm enough

6. I will not sign the contract unless you agree to it

7. If you have time, you will be able to visit the exhibition

1. Why didn't you go to the party last night?

2. I'm going to the post office to buy some stamps

3. You had better brush your teeth after every meal

4. If he doesn't study hard, his parents will feel angry

5. Have you ever visited London?

- Yes, I went there 2 years ago

6. She has never eaten a pizza before?

7. Yesterday, didn't I go to work ?

Ta có:(y+9) x (y-5)=0

Suy ra (y+9)=0 và (y-5)=0

Gọi (y+9)=(y₁+9);(y-5)=(y₂-5)

Ta có:(y₁+9)=0, suy ra y₁=-9

(y₂-5)=0, suy ra y2=5

Vậy y₁=-9 và y₂=5

1. Nam wishes he had a new schoolbag

2. My sister wishes she had enough time to study Chinese

3. We wish we could visit your village this week

4. Our parents wish they were healthy enough to walk up the mountain

5. Lan wishes she had a trip abroad

6. I wish I ate that kind of fruit

7. My aunt wishes she travelled by plane

8. John wishes he stayed in Vietnam some more days

9. He wishes could take some photos to show the trip to his parents

10. I wish I could go boating in the river with them

2. Mr Quang said he would spend two weeks on a farm

3. Minh said his sister prefered a yellow dress to a red one

4. The old man said their house was next to hers

5. The girls said those were all they had

6. The driver said that hotel looked new

7. The boys said they were going to hold a party there

8. The boy said his school was on the other bank of the river

9. The students said they wouldn't be late for school again

10. The man said he had to do it then

11. He asked me what time it was

12. The woman asked me what day today was

13. The man asked me what my name was

14. The policeman asked me where I came from

15. My friend asked me why I was so late