Who is ______,Kate or Betty?
A. hard-working
B. most hard-working
C. more hard-working
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What the writer said sounded_____.
A. interested
B. intereste
C. interesting
I think math is _____ difficult than Chinese.
A. more
B. much
C. most
Of all the students,Jack runs _____.
A. fast
B. faster
C. fastest
Home is ______ place wherever you go.
A. the warmest
B. warmer
C. warm