单项选择题

Betty's parents have lived in this city ______ five years.

A． for
B． since
C． in
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单项选择题
The old man turned on the radio ______ listened to it.
A． but
B． and
C． or
单项选择题
How lucky they are! I ______ wish I could change places with them.
A． probably
B． almost
C． mostly
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