This CD-ROM can help you learn and have fun ______.
The soft music sounds ____. We are all listening ____.
—What happened?—They didn’t ____ each other and had a fighting.
—What a beautiful dress you are wearing! It must be expensive. —No. It only ____ me fifty yuan.
China is ____ the west of Japan and ____ the east of Asia.
—____ can come in. I’m too busy to see ____. —Ok, I know.