__________ is known to all, too much stress can cause disease.

A．Which

B．That

C．It

D．As

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参考答案

【译文】众所周知，太多的压力会引起疾病。
【解析】本题考查固定搭配。as is known to all意为“众所周知”，为固定搭配。故选D。

1 It was not until he came back __________ I left the office.

A．then

B．which

C．that

D．when

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2 Only when he finished his homework __________ that he had made a mistake.

A．he then realized

B．did he realize

C．before he realized

D．he realized

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3 If it __________ rain tomorrow, we' 11 have the party outside.

A．wouldn' t

B．doesn' t

C．didn' t

D．won' t

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