7. She / think / do DIY / interesting.

A. She think doing DIY is interesting. B. She think do DIY is interesting.

C. She thinks doing DIY is interesting. D. She think does DIY is interesting.

8. Read books / help / widen / our knowledge.

A. Reading books helps widen our knowledge.

B. Reading books help widen our knowledge.

C. Reading books helps widens our knowledge.

D. Reading books help widens our knowledge.

9. They / often / go / shopping mall.

A. They often go to the shopping mall.

B. They often goes to the shopping mall

C. They are often go to the shopping mall.

D. They go to the shopping mall often.

10. How / your mother / go / work?

A. How do your mother go to work?

B. How does your mother goes to work?

C. How do your mother goes to work?

D. How does your mother go to work?