单项选择题

My parents live in a small village. They always keep candles in the house（）there is a power cut.

A. if
B. unless
C. in case
D. so that

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单项选择题
Take this medicine,（）you will be getting worse.

A. or rather
B. or else
C. for that
D. for another
单项选择题
—Did Alan enjoy seeing his old friends yesterday —Yes, he did. He（）his old friends for a long time.

A. didn't see
B. wouldn't see
C. hasn't seen
D. hadn't seen
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