1 . I ________________ he came in.
当他走进来的时候我正在看足球赛。

2 . I will never forget the year ________________.
我永远不会忘了我们乐队成立的那一年。

4 . I know that Chinese is a very difficult language, but I hope to be fluent when I graduate.（when引导时间状语从句）
I’ll be in charge of the whole company next week ____________________.下周经理不在时，我将管理整个公司。

6 . ________   ________ the road, you can’ be too careful.
当过马路的时候，你再小心也不为过。

7 . 曾经有一段时间，他对流行歌曲是如此疯狂。
__________________________ he was so crazy about pop songs.

8 . 我讨厌她在工作时打电话给我——我总是太忙而不能和她说话。
I ________________ she calls me at work—I’m always too busy to carry on a conversation with her.

9 . 我记得非常清楚，以前，湛蓝的天空，鸟儿的歌唱、月光和鲜花，从未令我心迷神往。
I can well remember that there was a time            a deep blue sky, the song of the birds, moonlight and flowers could never have kept me spellbound.

10 . I saw him__________(当我进教学楼时). (根据汉语提示完成句子)