弱弱的问一下OG第一题的句子成分

wensisheng · 发表于 2014-6-25 11:00:51

In a review of 2000 studies of human behavior that date back to the 1940, two Swiss psychologists declared that since most of the studies had failed to control for variables such as social class and family size, none could be taken seriously.

想弱弱的问一句：none could be taken seriously.是做什么成分的呢？

DUKB24 · 发表于 2014-6-25 11:33:59

since+从句，主句：none（主语）could be taken seriously

enkyklios · 发表于 2014-6-25 13:45:56

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弱弱的问一下OG第一题的句子成分

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