单项选择题

Mary has a curious expression on her face as though she ______ about something.

A．is smiling
B．were smiling
C．smiles
D．has smiled
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单项选择题
If only she ______ not so terribly frightened of Aunt Ruth.
A．is
B．has been
C．were
D．would be
单项选择题
The missing man was found ______ in the back of the truck.
A．wrapped
B．fixed
C．fastened
D．bound
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