问题 更新时间2023/9/23 17:53:00 ( ) 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