When we finally ______ to get all the work done, we were so exhausted that we simply felt like lying

题干

When we finally ______ to get all the work done, we were so exhausted that we simply felt like lying down and having a good sleep.

A：tried

B：managed

C：succeeded

D：attempted

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B

A	安全常识	B	生活知识
	瓦斯爆炸──天然气引起煤气中毒──CO引起		硬水──可溶性的钙镁化合物含量高蜂窝煤易于燃烧──与空气充分接触
C	物质的性质与用途	D	物质分类
	H₂作高能燃料──可燃性 N₂作保护气──化学性质不活泼		空气──混合物河水──氧化物