We need to do something to keep our classroom _____.
A. cleaning
B. clean
C. cleaned
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Frank saw him climb the tree _____.
A. noisy
B. noise
C. noiselessly
He was a ______ boy
A. carelessly
B. careful
C. care
Our factory is three times as ____as theirs.
A. big
B. bigger
C. biggest
The more you practice,_____ you can speak.
A. the well
B. the good
C. the better