ex5

1.b

2.b

3.c

4.không có đáp án đúng\

5.a

6.b

7.a

8.a

9.c

10.a

11.c

12.d

13.d

14.b

15.a

16.c

17.a

18.b

19.c

20.c

ex4

1.he goes to swimming pool because he likes swimming.

->he went to swimming pook because he likes swimming

2.they have dinner at nine o'clock

->they had dinner at nine o'clock

3.helen eats too many sweets

->helen ate too many sweets

4. i buy the newspaper in the shop 
->i bought the newspaper in the shop

5.we get up at eight o'clock and go to school

->we got up at eight o'clock and went to school

6.does she buy the newspaper in the shop over there?

->did she buy the newspaper in the shop over there?

7.do they do their homework in the evening?

->đi they do their homework in the evening?

8.do they have a good holiday?

->did they have a good holiday?

9.do they find any animal in the forest?

->did they find any animal in the forest?
10.is it dark when she gets up in the morning?

->did it dark when she gets up in the morning?

1.B (eat-ate-eaten)

2.B (take-took-taken)

3.C (have-had-had)

4.A

5.A

6.B

7.A

8.A

9.C

10.A

11.C

12.D

13.D

14.B

15.A

16.C

17.A

18.B

19.C

20.C

iv

1. goes ⇒ went 

2. have ⇒ had

3. eats ⇒ ate

4. buy ⇒ bought

5. get ⇒ got, go ⇒ went 

6. does ⇒ did

7. Do they ⇒ Did they

8. Do they ⇒ Did they

9. Do they ⇒ Did they

10. is ⇒ was, get ⇒ got

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