1._____happened to be a doctor on the train when the little girl fainted.
A.it B.as C.THAT D.there (答案为何是D)
==>这句话的意思是:小女孩晕倒的时候,碰巧有个医生在车上.
使用的是there be的句型,表是存在.happened to 是做状语用,表示碰巧的意思.
2.we made a dicision_____there would be rain,we stay at home.
A.that B.if C.that if D.whether (答案为何是C)
==>that是宾语从句的先行词,应该没问题吧?而if there would be rain,we stay at home.是dicision的内容.意思是,我们决定如果下雨的话,就留在家里.