He has a ping pong ball改为复数句

He has a ping pong ball改为复数句 Tom has a ping-pong ball 改为否定句 Tom( )( ) a ping-pong ball he has a ping-pong ball 改为一般疑问句 l think he has a ping-pong ball.改为否定句是什么? Jack has tow computers.（改为一般疑问句） He has a ping-pong ball.（改为 He has a ping-pong bat.(改为否定句） Does she have a ping–pong ball?改为肯定句.He plays sports every d those are some apples变为单数句 Mike has a ping-pong ball改为一般疑问句并 Li Wei has a ping-pong ball and a bat.改为一般疑问句 My sister has a ping-pong ball.改为一般疑问句并作否定回答 这几句英文的中文意思 I think he has a ping-pong ball I think he has a ping-pong ball,too的意思