spend time doing sth

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as引导非限制性定语从句

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as seemed strange

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so ... that

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与将来事实相反

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to a family

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will of

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what引导主语从句主谓一致问题

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from...till...

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a great deal of

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a good deal of

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单数与复数含义不同

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having finished

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finishing

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after finishing

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than 倒装句

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than do sb

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so... that...

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ask to do sth

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ask to do

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