I ____its mouth _____big .A.know,isn't B.don't know ,isn't C.don'_英语解答

I ____its mouth _____big .A.know,isn't B.don't know ,isn't C.don't knows ,is 哪个对.为什么呢?

人气：390 ℃　时间：2020-06-27 03:55:53

解答

C.don't knows ,is 是正确的.
its mouth _is__big 是宾语从句.在这种主宾结构的句子中,通过主句的否定来否定全句的意思.
所以,从句不能用否定.所以,A,B均不对.