I can fly a kite spring.
( )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.