问题
Buseshave routes. They ________ and ________ people at different places on theroutes.
A:take on, get off
B:pick up, drop off
C:take up; takeoff
D:pick out; drop out
B:pick up, drop off
C:take up; takeoff
D:pick out; drop out
正确答案是：
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She was ____ to study medicine to help the poor when she was a middle-school student [ ]
______ she finds out that you’ve lost her book— I really don’t know.
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