题目内容
The headmaster demanded the students in that class ______ to H1N1flu ______separated and treated without delay.
A.exposing; to be B.were exposed; should
C.exposed; be D.were exposing; was
C
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题目内容
The headmaster demanded the students in that class ______ to H1N1flu ______separated and treated without delay.
A.exposing; to be B.were exposed; should
C.exposed; be D.were exposing; was
C