题目内容
5. Some people waste too much water. They don't believe that it can some day.
A. keep out B. run out
C.be run out D. run out of
5. B
5. B短语run out意为“用完,耗尽”,无被动语态形式.keep out
“阻止……进人”,run out of “从……中跑出来;用完 ”。
根据句意选B.
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