When I passed by, I heard her _____ in the room.
#95761
A
sings
B
sang
C
singing
D
to sing
推荐题目
______ in 1885, this old car was the oldest one in the race.
#96625
A
Built
B
Being building
C
It was built
D
Having built
The professor explained this theory so clearly that this phenomenon was easy enough ________.
#95942
A
for us to work out
B
working out
C
for working out
D
to working out
If the car won’t start, _____ it. 
#98015
A
try push
B
try pushing
C
to try pushing
D
to try to push