Are these your friend?A.Yes,these are B.No,they are C.Yes,they are D.No,these aren"t

题目

Are these your friend?A.Yes,these are B.No,they are C.Yes,they are D.No,these aren"t
我知道选C,但想要一个正确的原因!

答案

these those 回答时都用they 代替 肯定是 yes they are 否定 no they arent