Private cars are required to take turns off roads one out of five weekdays ___the traffic pressure.
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A
relieve
B
relieving
C
torelieve
D
relieve
推荐题目
   It’s hard for us to make a choice, which means we have not decided _____.
#97347
A
to take a step
B
to take which step
C
which step to take
D
to take what
When his father came into his room, Tom pretended _______ a book.
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A
to read
B
to have read
C
reading
D
to be reading