单项选择题

Don’t get off the bus _________ it has stopped completely.

A．until
B．when
C．if
D．since
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单项选择题
It was not known ________ he had said during the interview.
A．whether
B．where
C．that
D．what
单项选择题
—— Do you like pop music or country music—— ________. I only like sports.
A．Each
B．Either
C．Neither
D．Both
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