Cho 2 hàm số bậc nhất 
y = (m^2 - 1)x + m - 3
y = 3x + 2m - 1

Tìm m để đồ thị 2 hàm số trên :

a. Song song

b. Trùng nhau

Cho 2 hàm số bậc nhất 
y = (2m - 3)x + n - 2
y = mx + 3

Tìm m , n để đồ thị 2 hàm số trên

a. Song song

b. cắt nhau

Sử dụng từ gợi ý để hoàn thành các câu sau.

1. I don't know the answer.

I wish_______________________________________________________________

2. The weather isn't fine today.

We wish_____________________________________________________________

3. I'm sorry I can't tell you the truth.

I wish_______________________________________________________________

4. My students can't communicate in English.

I wish_______________________________________________________________

5. Tim is too short to play volleyball.

Tim wishes___________________________________________________________

6. She can't join my party this evening.

I wish_______________________________________________________________

7. What a pity! I don't have a computer at home.

I wish_______________________________________________________________ 

8. I simply can't remember Myra's address.

I wish_______________________________________________________________ 

9. My sister has little time to look after her family.

I wish_______________________________________________________________ 

10. His brother won't help him repair the motorbike.

He wishes____________________________________________________________

11. Oh, no. I don't know how to control this machine.

I wish_______________________________________________________________ 

12. What a pity! You aren't here with us now.

We wish_______________________________________________________________ 

13. She has to get up early in the morning. She hates this.

She wishes that_________________________________________________________

14. There are not enough medical facilities in the countryside

People wish____________________________________________________________

15. Young children have to wear uniforms all the week.

 I wish_______________________________________________________________­­­­­­­__

. Chuyển những câu trực tiếp ở thể khẳng định và phủ định dưới đây sang câu gián tiếp.

1. “I am chatting with my American pen pal now," Peter said.

______________________________________________________________________

2. “My brother doesn't learn hard enough,” she said.

______________________________________________________________________

3. "I am reading a novel by Charles Dickens," she said. ______________________________________________________________________

4. "Trung plays the piano beautifully," they said. ______________________________________________________________________

5. "I must clean the floor now," she said to me. ______________________________________________________________________

6. "My brother doesn't like listening to Rock music, she said. ______________________________________________________________________

7. “Our teacher can speak three languages fluently,” they said. ______________________________________________________________________

8. "We're very proud of our school uniform,” said the girls. ______________________________________________________________________

9. “My daughter will take the English exam at the language centre tomorrow," the woman said. ______________________________________________________________________

10. “There is an interesting movie on TV tonight," Hoa said to me. ______________________________________________________________________

11. "Mom, my friends are going to visit me this weekend," she said. ______________________________________________________________________

12. "My grandmother is watching the weather forecast now", Minh said. ______________________________________________________________________

13. "We will visit Nguyen Du memorial next Sunday", their monitor said. ______________________________________________________________________

14. "I'm having a wonderful time with my friends here,” Mary said to her parents. ______________________________________________________________________

15. "The students should not wear casual clothes at school," a journalist said. ______________________________________________________________________

16. “I would like to go abroad for study when I finish this course,” Nam said. ______________________________________________________________________

17. “Many people don't believe in the existence of the UFOs," they said. ______________________________________________________________________

18. “We will collect the garbage around the school yard, ” our teacher said to us. ______________________________________________________________________

19. “Wearing the ao dai makes you look more graceful," my friend said. ______________________________________________________________________

 20. “We will not wait for you if you come late tomorrow morning," they said. ______________________________________________________________________

Sử dụng từ gợi ý để hoàn thành các câu sau.

1. I don't know the answer.

I wish_______________________________________________________________

2. The weather isn't fine today.

We wish_____________________________________________________________

3. I'm sorry I can't tell you the truth.

I wish_______________________________________________________________

4. My students can't communicate in English.

I wish_______________________________________________________________

5. Tim is too short to play volleyball.

Tim wishes___________________________________________________________

6. She can't join my party this evening.

I wish_______________________________________________________________

7. What a pity! I don't have a computer at home.

I wish_______________________________________________________________ 

8. I simply can't remember Myra's address.

I wish_______________________________________________________________ 

9. My sister has little time to look after her family.

I wish_______________________________________________________________ 

10. His brother won't help him repair the motorbike.

He wishes____________________________________________________________

11. Oh, no. I don't know how to control this machine.

I wish_______________________________________________________________ 

12. What a pity! You aren't here with us now.

We wish_______________________________________________________________ 

13. She has to get up early in the morning. She hates this.

She wishes that_________________________________________________________

14. There are not enough medical facilities in the countryside

People wish____________________________________________________________

15. Young children have to wear uniforms all the week.

 I wish_______________________________________________________________­­­­­­­__

Dùng dạng đúng của động từ trong ngoặc.

1. She wishes today (be) Christmas Day. ->

2. People wish they (have) a lot of gemstones. ->

3. The boy wishes he (be) an astronaut when he grows up. ->

4. The children wish they (can) take a space trip. ->

5. I am afraid I have no idea where Diana has gone. I wish I (know). ->

6. I wish people all over the world (stop) killing rare and precious animals. ->

7. Tam wishes his parents (allow) him to use their car. ->

8. He is very lazy. His mother wishes he (study) harder. ->

9. I wish that there (be) more food and clothes for the people in the flooded areas. ->

10. Hoa wishes that she (not have) to do the washing-up everyday. ->