根据句子意思，选用方框中的词填空。
quiet traffic instead population imagine
1. Please try to be ____________. Everybody is asleep now.
2. What's the ____________ of Xuzhou, do you know?
3. I can ____________ what the place is going to look like in a few years' time.
4. The journey took a long time. There was a lot of ____________.
5. We shouldn't just talk about it. Let's do something ____________.
1. quiet 2. population 3. imagine 4. traffic 5. instead