单项选择题

John planned () around Europe on horseback, but his ambition has not been achieved till today.

A. to have traveled
B. to travel
C. traveling
D. his traveling

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单项选择题
Selecting a mobile phone for personal use is no easy task because technology ()so rapidly．

A．is changing
B．has changed
C．will have changed
D．will change
单项选择题
John was made ()the truck for a week as a punishment.

A. to wash
B. washing
C. wash
D. to be washing
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