单项选择题

The sentence is hard to understand _________ there are no new words in it.

A． but
B． because
C． though
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单项选择题
Will you go and _________ the football match
A． have a look
B． look at
C． watch
单项选择题
Don't be hard _________ that poor girl.
A． on
B． to
C． for
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