英语动词填空Look!How heavily it __(rain)!

你好,很高兴能够在这里回答你的问题,
应该为：
is raining
现在进行时
看,雨下得多大呀!
Let's hurry!The film ____ (start) in 15 minutes.There's little time left.横线上是填will start？will start 用将来时，