Stay awake！You should know that it________to sleep in class.[ ]

What do you think we can do for our aged parents? — You _____ do anything except to be with them and be yourself. [ ]

The park is ____ good place to relax after a hard day’s work.

Cindy likes music and She wishes ________ a musician．

You may not understand what they have done, because they ____ a younger generation.