Using bicycles ______ greatly to people’s physical fitness as well as easing traffic jams. 
#83148
A
substitutes
B
attributes
C
distributes
D
contributes
推荐题目
I have got my baby ______recently, and I'm going to have Jenny ________it tomorrow.
#64301
A
looked after; care about
B
to take good care; care for
C
taken good care of; care for
D
looked after; taken good care of
I will do it myself ______ ask him to do it.
#83480
A
than
B
instead
C
in place of
D
rather than
--They ________ out the problem, but failed. --What a shame ! I never thought it was going to happen like that.
#72899
A
managed to work
B
managed working
C
sought working
D
sought to work