They were in Japan last month,_______?A.did they B.weren't they C.didn't they D.were they
问题描述:
They were in Japan last month,_______?
A.did they B.weren't they C.didn't they D.were they
答
答案:B【解题方式:前面肯定,后面否定;提取助动词或者be动词】