---It's ________ that all the people invited will e by nine.---Don't be so ________, darling.A.certain; sureB.certain; certainC.sure; sureD.sure; certain
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A解析sure不能修饰物,只能修饰人(I am sure.),第一空只能用certain;在Don't be so sure.(不要太确信了.)中只能用sure而不用certain.