You must take a rest,________ you will lose your health.
A.then
B.and
C.otherwise
D.therefore
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I have read one of his novels ______ a few of his plays.
A.also
B.meanwhile
C.as well as
D.either
She has been_____to take over the position of head nurse.
A. designated
B. prescribed
C. administrated
D.expired
Stericycle is a company which provides collection, transportation, treatment and_____ of medical waste.
A. assistance
B. disposal
C. cleaning
D. therapy
It worried her a bit_____ her youngest son had caught a cold.
A. what
B.if
C.while
D.that