题目内容

【题目】Lincoln's mother did what she can him.
A.help
B.to help
C.helping
D.helped

【答案】B
【解析】句意:林肯的妈妈竭尽所能的来帮助他。did what she can(do )做她所能做的,竭尽全力。to help him用动词不定式作目的状语。所以答案是B。

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