—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 ______.
He is taller than ______ in his class.
We will spend ______ doing our favorite things.
Are you feeling ______ to go to school?
You can get a good result ______ you work hard.
The old man felt ______, for he lived ______ in a ______ house in the mountain.