are those your sisters A yes,they are B no,they're not C no,they aren't 选哪个
问题描述:
are those your sisters
A yes,they are B no,they're not C no,they aren't 选哪个
答
A肯定没问题。
答
B 和 C 唯一的区别就是写法.
所以排除
因此选A.
答
选A
是,她们是
答
A. 是的,她们是
答
选A.
题目问题否定形式应为no,they are not
答
感觉A.C都对。但不能用they're not简写形式。