用所给词的正确形式填空。

1. They work out the difficult maths problem all by _____ (oneself) today.

2. What would you do if you _____ (win) a scholarship?

3. If it _____ (be) nice today, we _____ (go) for a picnic. But we were unlucky today.

4. If I _____ (have) time, I could play with  you.

5. If you had got up earlier, you would _____ (catch) the train.

生物质气化炉分（）气化炉、流化床气化炉及携带床气化炉。固定床气化炉工分下吸式、上吸式、横吸式及开心式四种。