—I want to be a scientist to do some research on green cars when I grow up.—Work hard. I’m sure your dream will be ______.
I often see her _______ the piano. Listen, can you hear her _________ the piano now?
--- I’m sorry I ____ my homework at home. --- That’s all right. Don’t forget ____ it to school this afternoon.
The flowers ________ every day, or they will die.
--- Jack, you look tired today. What’s wrong? --- I was ____ busy ____ I didn’t go to bed until midnight yesterday.
Stop _____ ! I’ll tell you an interesting story.