— Do you have any plan for this summer vacation, Mary?
— Sure, I’ d like to be a volunteer and help to ______ the Central Park.
A.put up | B.call up | C.clean up | D.cheer up |
— Do you have any plan for this summer vacation, Mary?
— Sure, I’ d like to be a volunteer and help to ______ the Central Park.
A.put up | B.call up | C.clean up | D.cheer up |