The window was broken. Try to ________who has broken it.
It's very important ______healthy food.
In America, basketball is _____popular than football.
The movie will start ______10 minutes.We must run to the cinema now.
-----What should we do to make the salad? -------First ,wash the vegetables and _______.
---How often do you go to the concert (音乐会)? _____ . I'm not interested in that at all.