公共英语一级
单选题They lost their way in the forest, and__________made matters worse was that the night began to fall.
参考答案：B进入在线模考
本题考查主语从句。译文是：他们在森林中迷了路，更糟糕的是夜幕开始降临了。名词性关系代词what引导主语从句，what在该主语从句中做主语。that也可以引导主语从句，但that在主语从句中不做任何成分。it不是关系代词，不能引导任何从句。
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