Ex 12

1. Do not let him use my umbrella

2. Take the first turning on the right

3.Don't tell me such things

4. Don't speak like that

5. Don't pay attention to her

6. Don't drive too fast

7. Close the doors

8. Sit down and open your book page 26

Ex 13(bài này mình viết thôi nhé còn bạn tự nối)

1. Don't accept candies from strangers

2.Brush your teeth before you go to bed

3. Turn off the light when you go to bed to save energy

4. Don't sleep on the lawn

5. Bring your dictionaries for language art class

6. Don't open the door to Mike

7. Don't watch aldult program

8. Don't forget to bring the CDs

Ex3

1. He didn't write a book.

Did he write a book?

2. She wasn't my boss.

Was she my boss?

3. They built a new house.

Did they build a new house?

4. I was at the concert last Sunday.

Was I at the concert last Sunday?

5. You bought clothes in this clothes shop.

You didn't buy clothes in this clothes shop.

6. They were born in Korea.

They weren't born in Korea.

7. He didn't swim in the lake.

Did he swim in the lake?

8. We were not at the gym last week.

Were we at the gym last week?

9. She went to her office by car.

Dis she go to her office by car?

10. He was a good boy.

Was he a good boy?

Ex 4

1.C

2.C

3.A

4.C

5.A

Ex 21

1 playing⇒play

2 bỏ một trong hai: "used to" hay "didn't"

3 ....do.....did⇒.....did......do

4 go⇒went

5 is⇒was

6 childs⇒children

7 at⇒in

8 takes⇒take

9 bỏ "is"

Ex 22

1.Forget

2.Turn

3.Be

4.Bring

5.Wait

6.Open

7.Make

8.Have

Ex 23

1. You must listen to your teachers

⇒Listen to your teachers!

*Study well*