2. 外语
  3. The opening ceremony is a great occasion. It is essential _______ for that.

The opening ceremony is a great occasion. It is essential _______ for that.

admin2010-01-15  52
问题 The opening ceremony is a great occasion. It is essential _______ for that.
选项 A、for us to be prepared
B、that we are prepared
C、of us to be prepared
D、our being prepared
答案A
解析 不定式在句中做主语补足语。
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