Listen, our teachers ______ Red Songs in the next room.A. sang B. are singing C. sings
Xiao Li _________ his hometown for ten years.
The beautiful coat ______ by her last month.
This CD-ROM can help you learn and have fun ______.
---I’m sorry. I _____ your printer for such a long time. ---Never mind.
Please ______ the computer. We will have the Computer Studies.