When he was a boy, he used to go there and watched _______.   
#98571
A
repairing bicycles
B
to repair bicycles
C
bicycles being repaired
D
bicycles to be repaired
推荐题目
The monument was built in honor of the explorer who was believed__the big river.
#90742
A
to have discovered
B
to have been discovered
C
to be discovered
D
having been discovered
 He was sad for ________ any chance of his going to college.
#96456
A
there being not
B
there not being
C
not there being
D
not being