单项选择题

Peter's book is ______ of all.

A． more difficult
B． difficult
C． the most difficult
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单项选择题
It is Sunday today. Lily and Lucy ______ in the park.
A． playing
B． plays
C． are playing
单项选择题
You don't draw so ______ as your brother.
A． good
B． better
C． well
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