haven, t to,don, t have to,must not, t need;-找考题网

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单项选择题

A．haven' t to
B．don' t have to
C．must not
D．don' t need

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热门试题

单项选择题A．busyB．tiresomeC．crowdedD．quiet

A．busy
B．tiresome
C．crowded
D．quiet

单项选择题A．helpB．doC．manageD．stop

A．help
B．do
C．manage
D．stop