英语单选题：More and more people have realized that we will not ha

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英语单选题：More and more people have realized that we will not have cleaner water……
More and more people have realized that we will not have cleaner water to drink unless something ______ soon.
A.was done
B.be done
C to be done
D.is done

.D unless引导的条件状语从句,主句是将来时,从句中用一般现在时或现在完成时代替一般将来时.

英语单选题：More and more people have realized that we will not ha More and more people have realized that we will not have a b more and more people have realized we will not have cleaner More and more people have realized we won't have cleaner wat 1.More and more people have realized we won't have cleaner w More and more people have realized that how serious this pro More and more people have realized that___good health depend 英语改错题 more and more people have realized such a Many people have realized that we won't have any more clean 问几道英语单选题1.More and more people were gathering there ,He ＿ hi doctors worry that more and more people will get affected--- there will be more and more people 和there will have more and