He is in _______.
After school he didn't go home. ______, he went to the playground.
______ summer nights, we often go to sleep ______ the window open.
If I went to the moon, I ______ bring something unusual back to the earth.
Why do you get your hair ______ red? Do you think it's beautiful?
—We are proud that the 2008 Olympics Games was held in Beijing.—______.