Question

— Do you have any plan for this summer vacation, Mary?
— Sure, I’ d like to be a volunteer and help to ______ the Central Park

1. A.
   put up
2. B.
   call up
3. C.
   clean up
4. D.
   cheer up

Answer 1

C
考查词组。put up 张贴，举起：call up 打电话；clean up 清理，cheer up 使兴奋；这里句意：我想成为一名志愿者帮助清理中心公园。