神马作文网一道英语从句的选择题,
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一道英语从句的选择题,
They would not be ready to experiment with new forms and to make mistakes,both of ____to their increased ability to learn.
a which contributes b them contribute c them contributing d what contributes
They would not be ready to experiment with new forms and to make mistakes,both of ____to their increased ability to learn.
a which contributes b them contribute c them contributing d what contributes
答案是C.这是一个由-ing形式所构成的短语,作状语.答案A中的动词contribute的形式不正确.