what __it is!a beautiful stamp ,b a beautiful stamp,c beautiful stamps,dbeautiful stamp'

问题描述:

what __it is!a beautiful stamp ,b a beautiful stamp,c beautiful stamps,dbeautiful stamp'

选B
stamp是可数名词,肯定加冠词,排除A, D;
由题干it is 知,应该是单数,排除C

B

a beautiful stamp.
后面是it is ,所以前面用单数

AB 好像一样啊, 都对
What + a/an + adj +名词
比如 what a good day it is..