16. - What did you do that_______?
- To help more poor children to go back to school.
A.with B.to C.for D.at
17. - Mom, I got the best grade on the English test today.
- Good job, son. I'm_______ of you.
A. sure B. sick C. afraid D. proud
18. Cartoon characters_______ Mickey Mouse and Snoopy are still popular,
A. instead of B. such as C. because of D. together with
19. -Congratulations!You've got a chance to be an exchange student. -_______.
A. Of course. B. I agree. C. Thank you. D. Good luck.
20. - How long_______ a volunteer in the community? -