[ Grammar ]
Patients ______ leave the hospital without doctor’s permission.
A. must
B. mustn’t
C. has to
D. doesn’t have to
Select your answer:
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Mixed General Quiz › ViewThe world record for speed skating was ___ many time at the 1998 Nagano Olympics.
a. dropped
b. broken
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You can avoid some diseases by yourself clean.
A. keeping
B. looking
C. taking
D. bringing
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