用burn构成的短语的适当形式填空

1. Put some wood on the fire and make it           .

2. The fire           .so we had to restart it.

3.In the big fire his house was            .

4. Half of the candle had, so we had better go to sleep.

DRAM电路简单，集成度 【10】 ，成本低，需要自动刷新，速度较慢。