How many English books do you have? _________A. I have 9. B. I can see 10. C. Yes, I do.
()Your brother looks _____ younger than you.
()Would you mind _____ the window for me?
() It is very ______ of you to make such stupid mistakes.
()-- Mom, we are running out of milk. -- Let's go to the ______ to buy some.
() In order to give children a better life in the future, we should ____ the environment.