单项选择题

Being watched by a lot of people, Alison felt very nervous, _____ what to say.

A．didn’t know
B．not knowing
C．and doesn’t know
D．not know
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单项选择题
Not only _____ a pay increase, they want reduced hours as well.
A．do nurses want
B．nurses want
C．are nurses wanted
D．nurses are wanted
单项选择题
– Did Richard mend the roof himself – No, he _____ because he doesn’t like to climb a ladder.
A．hadn’t mended it
B．had it mended
C．mended it
D．had mended it
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