They use computers to keep the traffic smoothly.
#98965
A
being run
B
run
C
to run
D
running
推荐题目
The students pretended_______ attentively when the teacher came in.
#95288
A
to learn
B
learning
C
and learned
D
to be learning
Many students believe the choice of their courses and universities should ______ their own interests.
#90356
A
be based on
B
based on
C
be basing on
D
base on
Is there enough time ___ now? Yes, take it easy.
#97801
A
leaving
B
being left
C
left
D
having been left
The air has leaked out of this football.Could you get it ________ up?
#88277
A
blow
B
blowing
C
blown
D
to blow
Outside the exit, many fans waited for the great pop singer, _______to take a picture with him.
#90203
A
hoping
B
hope
C
hoped
D
to hope