givetherightanswer.
a.toperform b.perform
c.tobeperforming d.havingperformed
5.shethreatenedtotakethemagazineto________courtiftheydidn’tpublish________immediateapology.
a./;the b.the;/
c./;an资源难易程度:★★★★★★★★★★★★★★★
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