It is strange that he ____back so early
问题描述：
It is strange that he ____back so early
A.came B.will come C.had come D.should have come E.should come
答
选A, came 回来. 很奇怪他这么快就回来了.
will come将来时,意思不对
had come 过去完成时,表示过去发生的事,对过去造成的影响.而主句里是一般现在时,所以时态不对.
should have come,应该已经回来了,意思不合适
should come应该回,意思不合适