We don’t doubt ____ he’ll give us much help. _____ we doubt is _____ he’ll come on time
A．whether, That, whenB．that, What, whether
C．whether, What, whetherD．that, Why, whether
B
考查名詞性從句。第一空是賓語從句，doubt用于否定句中使用that，第二空是主語從句，we doubt 后缺少賓語，所以用關系詞What，第三個空是表語從句，是否按時來，所以用whether，古選B。
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