`1.` How long has he danced?

`2.` They started living here 10 years ago.

`3.` The birds have built this net since last week.

`4.` How long ago did you start studying in this university?

`5.` We have lived independently since we were 18 years old.

`6.` She started becoming sick when the children left home.

`7.` I have done my business for 4 years.

`8.` I started knowing each other 12 years ago.

`9.` He hasn't talked to her for 2 weeks.

`10.` I have never seen such a beautiful house before.

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`1.` Where does Mr. Minh live?

`2.` What are they doing at present?

`3.` Does it often rain in October?

`4.` What is he painting?

`5.` How often does your father wash his car?

`6.` How will she go to work?

`7.` Where is the boy flying the kite?

`8.` What is Hoa doing in her room?

`9.` Who do you watching TV in the living room with?

`10.` When are Mr. and Mrs. Robinson having a party?

1. How long has he danced?

2. They started to live here 10 years ago

3. The birds have built this net since last week

4. How long ago did you start to study in this university?

5. I have done my business for four years

6. He has not talked to her for 2 weeks

7. I have not ever seen such beautiful house before

II

1. Where does Minh live?

2. What are they doing at present?

3. Does it often rain in October?

4. What is your father painting?

5. How often does your father wash his car?

6. How will she go to work?

7. Where is the boy flying the kite?

8. What is Hoa doing in her room?

9. Who are you watching TV in the living room with?

10. When will Mr. And Mrs. Robinson have a party?