被动语态的填空题!
用括号内所给词的正确形式填空完成句子.
1._____recorders_____(use) in your class every day?
2.when_____your new car ____(buy)?
3.in which country _____Dolly____(clone),do you know?
4.-Must the work ____(do) now?
- No,it may ___(finish) tomorrow.