【单选题】【消耗次数：1】
Let’s begin our class _________ you are all here.
①
if
②
when
③
since
④
before
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Since you have already come, you _____ stay here for a couple of days.
①
might well
②
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common
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正确
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①
was
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①
you are forgetful
②
you are not working hard enough
③
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④
you are trying to memorize too many new words at a time
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We all thought ______ pity that you were unable to attend our meeting.
①
that
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