单项选择题

— Tom, you______ take that mistake again. — I won't, Sir.

A． needn't
B． mustn't
C． won't
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Mrs. Green is ill. Please send ______a doctor.
A． to
B． with
C． for
单项选择题
Find out______ they are going to attend the party this evening and ask ______we may join them.
A． whether, that
B． where, whether
C． what, if
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