搜题
王老师:19139051760(拨打)
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第1题

It was Mrs. White’s day off, and Paul was _______ duty iher place.
·in
·to
·on
·off
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第2题

She saw that there was indeed a maimmediately behind her. ______, he was observing her strangely.
·Therefore
·Howe
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第3题

Italy ______ Germany is turning out to be a surprisingly well matched competition.
·versus
·with
·and
·to
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第4题

______ we now know about the disease was learned by careful study of diseased organs.
·What
·Why
·How
·That
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