从方框中选择合适的动词，用其适当时态填空。

plan    rise   practise     drop     rain

The teacher told us that the sun _________ in the east.
When I got home, my sister __________ playing the piano.
Tom with his parents ___________ a trip to Huangshan next week, isn’t he?
Look at the sky, there are so many clouds! It _____________, isn’t it?
I ___________ my glasses on the ground and broke them. I had to buy a new pair.