Bài 3 : 

6. 

(+) They were born in Korea.

(-) They weren't born in Korea.

(?) Were they born in Korea ?

7. 

(+) He swam in the lake.

(-) He didn't swim in the lake.

(?) Did he swim in the lake?

8. 

(+) We were at the gym last week.

(-) We weren't at the gym last week.

(?) Were you at the gym last week?

9.

(+) She went to her office by car.

(-) She didn’t go to her office by car.

(?) Did she go to her office by car.

10.

(+) He was a good boy.

(-) He wasn’t a good boy.

(?) Was he a good boy?

Bài 4 : 

1. She went out with her boyfriend last night.

2. Laura cooked a meal yesterday afternoon.

3. Mozart wrote more than 600 pieces of music.

4. I was tired when I came home.

5. The bed was very comfortable so they slept very well.

6. Jamie passed the exam because he studied very hard.

7. My fathertaughtthe teenagers to drive when he was alive.

8. Dave wanted to make a fire but there was no wood.

9. The little boy spent hours in his room making his toys.

10. The telephone rang several times and then stopped before I could answer it.

Chúc bạn học tốt! ^^