问题
选择题
Rita and Anna have finished their homework, ______?
A. have they B. haven’t they C. didn’t they
答案
答案：B
本题为反义疑问句，前句是肯定的，后句用否定的结构，本题的否定结构为haven’t，故本题选B。
搜题请搜索小程序“爱下问搜题”
Rita and Anna have finished their homework, ______?
A. have they B. haven’t they C. didn’t they
答案：B
本题为反义疑问句，前句是肯定的，后句用否定的结构，本题的否定结构为haven’t，故本题选B。
