6. I wish I ________ a good teacher in the future.

A. will become

B. can become

C. would become

D. had become

7. The entrance examination will be held ________ June 15th 2021.

A. in

B. on

C. at

D. to

8. Have you ever ________ a letter to the local authorities to complain about the public transport in your town?

A. wrote         

B. writing

C. written

D. write