she has a brother改成复数是什么

she has a brother改成复数是什么 she has a brother 复数 ( )()a brother? she has a brother改成一般疑问句 she has a brother怎么改为复数句? She has a good friend.(改成复数句） She has got a nice picture(改成复数句） She has a basketballs and a tennis ball.（改成复数形式） 把下列句子改成复数形式 I am a chila.He has a pretty toy.She is an Austr She has a knife.变复数句 She has a nice watch.变为复数. She has a baseball(改为复数) She has a computer.(改为复数句)