Ⅰ. 选用适当的连接词填空
that, where, what, how, why, whether, because, as if
1. The question discussed at the meeting was whether it was worth trying.
2. All this was over twenty years ago, but it seems as if/that it were only yesterday.
3. The trouble is that I lost the key to my room.
4. I’m a bit sleepy. It’s because I was up all night.
5. That was where I spent my holiday.
6. My suggestion is that we (should) start early tomorrow.
7. I didn’t phone her, and that’s why she got angry with me.
8. Whether ways will be found to stop pollution or not is just what worries the public.
9. The problem is how we can finish the task before Tuesday.
