2. 外语
  3. It’s a shame ______ able to give them any advice.

It’s a shame ______ able to give them any advice.

admin2009-02-10  27
问题 It’s a shame ______ able to give them any advice.
选项 A、not to have been
B、to have not been
C、to have been not
D、to not have been
答案A
解析 不定式的否定形式要把not放在不定式符号to前面。
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