问题
完形填空
It's dark and little Anne can't find her way home. She really doesn't know what ________(do)．
答案
to do
句意：天黑了，小安妮找不到回家的路，她不知道如何是好。考查“疑问词＋不定式”结构。本题中what to do作宾语，相当于“what she will do”。
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