Jack has tow computers.（改为一般疑问句） He has a ping-pong ball.（改为复数形式His sister has an English dictionary.（改为一般疑问句,并做否定回答）piay；after；I；ping-pong；classmates；with；class；my；ofter（连词成句）
问题描述：
Jack has tow computers.（改为一般疑问句） He has a ping-pong ball.（改为复数形式
His sister has an English dictionary.（改为一般疑问句,并做否定回答）
piay；after；I；ping-pong；classmates；with；class；my；ofter（连词成句）
答
Does Jack have two computers?
He has two ping-pong balls.
Does his sister have an English dictionary? No.she doesn't.
I often play ping-pong with my classmates after class.
答
正确答案为：Does Jack have two computers?They have ping-pong balls.Does his sister have an English dictionary?No,she doesn't.I often play ping-pong with my classmates after class.