Are these your trousers?—Yes,___.A.it is B.they are C.they're D.it's
问题描述:
Are these your trousers?—Yes,___.A.it is B.they are C.they're D.it's
答
B.they are
they're 后面是一定还要跟其它单词的,如not,不能单独用they're