They had talked only for a few minutes ________ they found they were of different opinions. ( 章节：3 难度：2)
- A、unless
- B、while
- C、before
- D、once
正确答案:C
答案解析:有
微信扫一扫手机做题
做题室题库
做题室题库
They had talked only for a few minutes ________ they found they were of different opinions. ( 章节：3 难度：2)
微信扫一扫手机做题