1._________ her telephone number, I couldn’t ring her up.由于不知道她的电话号码，我无法打电话给她。

2. ____________________, we will go there on foot.天气好的话，我们将步行去那里。

3.___________________, I met Mary.上学时我遇见了玛丽。

4. I turn off the light, ____________________.我把灯关了，所以什么也看不见。

5. _____________________, you will succeed.   努力工作，你就会成功。

6. _____________________ his letter, I decided to write to him. 没收到他的来信，我决定给他写信。

7. The building __________(build) now is our new library.

8. __________________________(give) such a good chance, how could you let it slip away?

9. He stood, __________(lean) against the wall/

10. The song is sung all over the country, _______ (make) it the most popular song.

答案：

1. Not knowing     2. Weather permitting

3. While going to the school    4. seeing nothing

5. Working hard   6. Not receiving   7. being built

8. Having been given   9. leaning   10. Making