【英语】__my book.__your book.A.This is;That's B.This's;That's C.This is;It's D.This's;That is

问题描述:

【英语】__my book.__your book.A.This is;That's B.This's;That's C.This is;It's D.This's;That is
如上

选A
this is 不可以缩写,而that's是可以的,所以选A.