1.Hestoodatthewindow,thinkingwherehe__hiscameralast.A.sawB.hasseenC,hadseenD,wouldseen答案是A我选了C,这不过去的过去很明显嘛?2.Tomakesuretheneedywould____theoffer,wehadhandedoutnumberstothemthatmatched

　　1.Hestoodatthewindow,thinkingwherehe__hiscameralast.

　　A.sawB.hasseenC,hadseenD,wouldseen

　　答案是A我选了C,这不过去的过去很明显嘛?

　　2.Tomakesuretheneedywould____theoffer,wehadhandedoutnumberstothemthatmatchedthebaskettheyweresupposedtoreceive.

　　A.acceptB,bringC,carryD,receive

　　这个根据后面的RECEIVE可以选出来,不过我想知道为什么不能用其它三个呢?有什么讲头?