Music can ______ (rich) our lives.
I think surfing the Internet is a waste of time.(改为否定句)
I ______ _______ surfing the Internet _________ a waste of time.
I always played computer games in the Internet bar.(用never改为否定句)
Tom _____ _______ computer games in the Internet bar.
We never chat with each other on the Internet.(用ever改为一般疑问句)
_____ you ______ ______ with each other on the Internet?
When did you become interested in dancing?(保持愿意)
When did you ______ __________ dancing?
Did you often ______ VCDs or _______ CDs before?
A.listen to,watch B.watch,listen C.watch,listen to D.listen,watch
(VCD和CD啥意思,