单项选择题

When he looked into the audience，he caught （）of his mother nodding to him.

A.sign
B.sight
C.glow
D.head

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单项选择题

By the time the rescuers.got back to the camp，they had nearly of water.（）

A. put out
B.run out
C.gone short
D.cut short

单项选择题

大豆是()

A.短日照作物
B.中性作物
C.长日照作物