There must be many people ________ for their trains at the train station because of the golden week holiday.
#49141
A
are waiting
B
waited
C
to wait
D
waiting
推荐题目
The students in this school are made_______ school uniforms on Monday.
#48407
A
to wear
B
wearing
C
wear
D
worn
---How did you work out the difficult chemistry problem?--- I worked it out by ________.
#49667
A
working with a group
B
think very hard
C
ask the teacher for help
D
doing oneself
—Before he went abroad, he spent as much time as he ____ English.
#50421
A
could learning
B
learned
C
to learn
D
could learn
John does important research _______ the best ways to help the old.
#48571
A
finds
B
finds
C
found
D
to find out