题目内容
It took Sigmund Fred less time to fly to Xi'an than it ________ there．
[ ]
A．did to drive
B．was driving
C．does to drive
D．did driving
答案：A
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题目内容
It took Sigmund Fred less time to fly to Xi'an than it ________ there．
A．did to drive
B．was driving
C．does to drive
D．did driving
／isn′t easy，I cant do it．