单项选择题

It is a legal ______ for parents to ensure that their children are provided with efficient education suitable to their age.

A．sympathy
B．obligation
C．impulse
D．influence
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单项选择题
After so many weeks without rain, the ground quickly ______ the little rain that fell last night.
A．skipped
B．soaked
C．retrieved
D．absorbed
单项选择题
While driving along the treacherous road, ______.
A．my right rear tyre blew out
B．my right rear tyre had a blowout
C．I had a blowout on my right rear tyre
D．I had my right rear tyre blowout
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