— I am like a cat on hot bricks. There are so many problems that I don't know____ to deal with them.— Calm down first. Let's see what I can do for you.
______ can help us learn ______ about the world.
There is a teacher’s desk _______ of the classroom. Mr. Liu is standing _______ of it.
_______ takes her about ten minutes ________ to school by bike every day.
The buildings _______ your school _______ modern.
______ you a happy New Year, boys and girls! I ______ you can have fun.