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The post office is near here．You can go there ________ foot．You don’t need to go there ________ a bike．
A．on ;by
B．on; on
C．by; ride
D．on ;ride
There ________ a bike and two boxes in the room.
[
A
B
C
D
介词填空
Is there a bike ________ the tree?
--________ is over there?
--A bike.
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