单数句变成复数句1.He is a doctor.2.She is a musician.3.This piano is black.4.What's your telephone number?5.The box is big.6.Where is your computer?

问题描述:

单数句变成复数句
1.He is a doctor.
2.She is a musician.
3.This piano is black.
4.What's your telephone number?
5.The box is big.
6.Where is your computer?

1.They are doctors.
2.They are musicians.
3.These pianos are black.
4.What are your telephone number?
5.The boxes are big.
6.Where are your computers?
绝对正确.