-Wehavedonealottomakeourcitycleaner,butit'sstillnotenough.-Soweshoulddotoimproveit.()A.lessB.higherC.laterD.more
-We have done a lot to make our city cleaner,but it's still not enough.
-So we should do______ to improve it.( )
A. less
B. higher
C. later
D. more
根据but it's still not enough可知,这是两者之间的比较,应该用比较级形式;又根据副词修饰动词的原则,此处应该是副词much比较级形式more修饰动词do,本句“多做一些事情来改善当前的情况”,故选D.
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