王老师:19139051760(拨打)复制微信 题目 更新时间:2023/9/23 ( ) In the following pair of sentences, sentence (b) presupposes sentence (a): (a) John managed to finish in time. (b) John tried to finish in time.A.正确B.错误 答案 登录 注册 A 出自:联大 >> 信阳师范大学英语语言学 信阳师范学院继续教育学院