单项选择题

He is only too ready to help others, seldom,（）,refusing them when they turn to him.

A. if never
B. if ever
C. if not
D. if any

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单项选择题
—The weather is too cold（）March this year. —It was still（）when I came here years ago.

A. for colder
B. in cold
C. in hot
D. for hotter
单项选择题
We hope to go to the beach tomorrow, but we won't go（）it's raining.

A. if
B. when
C. though
D. because
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