The library needs __, but it will have to wait until Sunday.
#98110
A
cleaning
B
to clean
C
clean
D
being cleaned
推荐题目
A communicative satellite ______ as much as 3.5 tons was sent up into space last week.
#92994
A
weighing
B
weighed
C
to be weighed
D
being weighed
The film star walked to his car, ______ a crowd of journalists. 
#98429
A
followed by
B
following by
C
to follow
D
to be followed by