单项选择题

—Where is your farther
—He ______ flowers in the garden.

A. waters
B. must water
C. must be watering
D. must have watered
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单项选择题
It is strictly ______ that access to confidential documents is denied to all but a few.
A. secured
B. forbidden
C. regulated
D. determined
单项选择题
She is going to have ______ X-rays examination this morning.
A. a
B. an
C. the
D. some
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