这句话意为它一定是落在店里的某个角落.首先是对过去的事情肯定的推测,所以用Must have done,其次it是被动时态,所以是must have been done.
It must have been drop somewhere in the 为什么用been
1个回答
相关问题
-
have been to somewhere还是have been somewhere?
-
I think it must have been in 1967 ____ I visited the Great L
-
It must have been about two in the morning when I returned h
-
1-.It must have been hard word.
-
The island at one time must have been prosperous,for it enjo
-
The city at one time must have been prosperous,for it enjoye
-
must have been done must have done
-
It must have been so though for you,huh?
-
have been to 和 have been in 和have been on有什么区别
-
and orders have been given at the box-office that it must ne