there happened to be英语语法专家进___happened to be no one in the deserted building when the fire broke out last night.A.It B.This C.There D.ThatIt happened to be 和There happened to be有什么区别?
问题描述：
there happened to be英语语法专家进
___happened to be no one in the deserted building when the fire broke out last night.
A.It B.This C.There D.That
It happened to be 和There happened to be有什么区别?
答
我感觉选C.主句是there be 句型,happen to 表”碰巧”的意思,to是不定式符号后需跟动词原形,那就得把happen to 放在there be 中间．整句话的意思是”昨晚失火时那栋空楼里面碰巧没人”