Help me , sắp die roii

1. There is a possibility of rain tonight.

2. Was it necessary for you to say that?

3. You'd better get some rest yourself.

4. We may not be back until tomorrow night.

5. It's possible for him to finish his studies next year.

6. Don't leave the tap drip, or you will waste water.

7. The weather was so awful, so we didn't enjoy the day.

8. It may be necessary to make alternative arrangements.