1 . Fortunately, my neighbor helped me out. His teacher was a doctor. （用定语从句合并句子）
→Fortunately, my neighbor, ________________, helped me out.

2 . I have so many friends. Two thirds of my friends are girls. (改写定语从句)
I have so many friends, ____________________________________.

3 . In 1944, Saint-Exupéry left on a wartime mission over occupied France, ________ (他再也没有从那里回来). (根据汉语提示完成句子)

4 . Here is Mr White, ________ for a long time.
这就是怀特先生, 你等了很久的人。

5 . The building had been repaired, ________ was destroyed again in a big fire.
那栋楼房曾经被整修过，楼顶在一场大火中又被烧毁了。

6 . It now has 20, 000 hectares of land, more than ________ are under cultivation.
现在它拥有两万公顷土地, 其中超过三分之二的土地已经耕种。

7 . I’ve got an English penfriend, ________ in London this summer.
我有一个英国笔友, 今年夏天我们终于在伦敦见面了。