The old granny did all her best ________ her son to learn to look after himself.


  1. A.
    helped
  2. B.
    helping
  3. C.
    to help
  4. D.
    helps
C
解析：從選項看，本題考查動詞的非謂語形式的用法�？崭袂懊娴膬�(nèi)容意為“這個老太太做了最大的努力”，后面的一部分的意思為“幫助她的兒子學習照顧他自己”�？梢�，the old granny did her best的目的是help her son to learn to look after himself.因此本題中應該使用不定式短語作目的狀語。正確答案為C。
注意：不定式短語作狀語時與動詞的其他非謂語形式作狀語時一樣要求邏輯主語的一致。作狀語的不定式的邏輯主語就是句子的主語。
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