2. 外语
  3. All______is a steady supply of water to the farmland.

All______is a steady supply of water to the farmland.

admin2013-03-27  14
问题 All______is a steady supply of water to the farmland.
选项 A、which needs
B、that is needed
C、the thing is needed
D、need
答案B
解析 句子的大意为：所需要的就是对农田用水的稳定供应。本句主语为不定代词all，“that is needed”为主语的定语从句。所以B项符合题意。
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