英语简单选择一道
问题描述：
英语简单选择一道
7.How excited Glen is!This must be the first time that he ____ abroad.
A.is B.has been C.was D.will be
为什么
答
选择B.
it,that,this is the first/second..time that sb has done
是固定句型.
而且前面时态往后退,后面时态也往后退一个
it,that,this was the first/second..time that sb had done