单项选择题

He __________reading silently at first.

A．used not to
B．didn’ t use to
C．was not used to
D．is not used

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单项选择题

While discovering the cause of a serious illness,__________.

A．the illness should be cured immediately
B．the patients should be taken good care of
C．the doctor should give the patient good care
D．the effective measure should be taken

单项选择题

__________ care would have prevented it.

A．A few
B．A little
C．Few
D．Little

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