单项选择题

So much ______ his financial position that he can't sleep at night.

A．he worries about
B．he worried about
C．did he worry about
D．does he worry about
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单项选择题
A teacher ______ do every exercise but a student ______.
A．may not ; must
B．needn't; must
C．can't; should
D．mustn't; should
单项选择题
We couldn't eat in a restaurant because ______ of us had ______ money on us.
A．all ; no
B．any ; no
C．none ; any
D．no one ; any
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