单项选择题

Granny asked Li Feng ______ some shopping for her.

A． doing
B． did
C． to do
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单项选择题
There are some trees on ______ side (s) of the street.
A． both
B． every
C． either
单项选择题
There are a lot of spelling mistakes in your compositon. You should have been more ______.
A． carefully
B． careless
C． careful
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