OG13--SC1 In a review of 2000 studies of human beavior that date back to the 1940s, two swiss （psychologists, declaring that since...) 括号部分是选项，A是 psychologists, declaring that ;E是 psychologists declared that 弱弱问一句，为啥-ing不对... OG解释：the subject of the sentence, two swiss psychologists, need a main verb. The -ing verb form declaring cannot ,on its own, be the main verb... 谢谢各位呀···还有就是这个算是哪块的问题，我必须得系统看看了
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发表于 2013-2-18 01:24:58
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