单项选择题

Susan stood by the station, () to the music.

A. listening
B. was listening
C. to listen
D. listened

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单项选择题
That is () he decided to go to Spain,

A. what
B. that
C. so
D. why
单项选择题
This machine needs (). Can you have it().

A. to repair; repair
B. repairing; repaired
C. repair; repairing
D. be repaired; repaired
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