A Frenchman who lost his arms and legs successfully swam across the Channel, a challenge he           for two years.
#102833
A
has been preparing
B
had been preparing
C
has prepared
D
prepares
推荐题目
The old worker has been fired and now a young man ______.
#99876
A
took place
B
has taken the place
C
takes place of him
D
has taken his place
—Why are you late today.Mary?—I’m sorry,Mr Li.My bike ________ on the way.
#102381
A
broke down
B
has broken down
C
breaks down
D
had broken down