---Lisa, don’t let ______ in. I’m too busy to see ______ all the morning. ---OK. I ______.
Don’t forget to __________ your school things when you have finished your homework .
of the surface of the earth covered with water.
Johnson was the first on the list of the famous stars because he was the richest ___ them.
______ exciting news it is! Our government is doing something to stop the haze(雾霾).
-- Let’s see the pandas first. -- __________.