题目内容：

求 人教版英语必修五 课本习题答案
第29页2、3题；第64页1、2题

优质解答

P29：二.1.Neither he nor I knew how to use that recorder.2.I only began my work on designing a new bridge then.3.There was not only a Chiristma tree but also exciting presents under it.4.Hu Xin asked ...