单项选择题
After so many nights of ______, Mrs. Constable decided that she really must see a doctor. She could not continue to lie awake, night after night, worrying about her health.
A．parties
B．frightening dreams
C．sleeplessness
D．loneliness
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单项选择题
He likes to swim ______.
A．and playing football
B．and he also likes playing football
C．and to play football
D．and he likes to play football
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单项选择题
The university board of trustees deemed it urgent that a new provost ______ to replace Mr. Dannison who had been diagnosed with cancer.
A．be selected
B．should be selected
C．must be selected
D．was selected
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