What events do you have ____________ your school?A.for B.on C.at
The twins has studied in this school ________.
------When and where ____you _____the bag? ------ Oh, yesterday in my desk.
------Where is your father? ------He _______ Shanghai. He has ______ there for a week.
This CD-ROM can help you learn and have fun_____.
Look! What a clean room! Who _______it ?