Ex3

1-c                      5-h

2-g                     6-d

3-f                      7-b

4-a                    8-e

Ex5

1.were/was

2.did

3.did

4.were

5.did/were

6.did

7.was

8.was

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ex3:

1.e

2.g

3.f

4.a

5.h

6.d

7.b

8.c

ex4:

1.What time  does your farther get up and have breakfast ?

2.Ha's house is in the country and it's small 

3.How many aties are there in your country?

4.How did your family get to Phu Quoc island?

5.Jand goes to school at eight o'clook evevery morning 

6.Does Hung live in the city or in the country?

7.Did your take part in the sports fesfestival ?

8.Hoa invited Minh to her birbirthday party

9.My family went to my cousn's birbirthday part last night

10.What did you do on Mid-Automn fefestival ?

11.My classmates went on a trip to the zoo by bus

12.We enjoyed the food and drink at the party

ex5:

1.Were

2.Did

3.Did

4.Was

5.Did

6.Did

7.Was

8.Was