问题
选择题
When she saw her son liked reading, she did all she could ______ him.
A．help
B．to help
C．helping
D．to helping
答案
答案：B
考查非谓语动词，不定式做目的状语。当她得知她的儿子喜欢读书，她做了她所能做的事情去帮助他。 本题受can的影响容易误选A，she could （do）做定语修饰all
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