— Do you have any plan for this summer vacation, Mary?— Sure, I’ d like to be a volunteer and help to ______ the Central Park. 
#60497
A
put up
B
call up
C
clean up
D
cheer up
推荐题目
It_______ five years since he_______ Beijing.
#54146
A
was, left
B
has been, has left
C
is, left
D
is going to be, has left
In my senior high school, I will  ______ than I did in my junior high school.
#52189
A
study more harder
B
be hardworking
C
work harder
D
study hard