单项选择题

We have been told that under no circumstances______ the telephone in the office for personal affairs.

A．may we use
B．we may use
C．we could use
D．did we use
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单项选择题
When he arrived, he found ______ the aged and the sick at home.
A．none but
B．none other than
C．nothing but
D．no other than
单项选择题
A ______ to this problem is expected to be found before long.
A．result
B．response
C．settlement
D．solution
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