同学你好，该知识点来自沪江网校《英语零基础直达大学六级全能畅学卡【现金奖励班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学你好~
1 He read the book and returned it to the library.
2 The boy climbed the tree and picked some apples.
3 I opened the door and he came into the hall.
4 He looked for his pen but (he) could not find it.
5 She called to him but he did not answer her.
6 Everyone was out so I left a message.
7 He plays both soccer and rugby.  注意both的位置
8 Both children and adults enjoy holidays.
9 He must be either very clever or very foolish.
10 Neither George nor Dave plays football.  neither…nor… A和B都不……
11 George plays neither soccer nor rugby.  注意单三形式
12 He neither knows nor cares. 注意单三形式
13 He not only forgot to take his umbrella but he forgot to take his briefcase as well.

祝同学学习进步~