has got a ball中的a能否去掉名词还是单数形式是不是如果那样就必须是复数形式ball后面加S

has got a ball中的a能否去掉名词还是单数形式是不是如果那样就必须是复数形式ball后面加S have you got a new colour ball 这句英语中的got 是这have you got a new colour ball 这句英语中的got 是这个还是用get under the table [ ] A a ball are B.is a ball C are a ball D.has a ball His uncie has a soccer ball 用some替换句中的a 改疑问句：He has a soccer ball. Has he got a computer? Has he got a computer? Has he got a computer? Has she got a beautiful Has he got a pen He has a soccer ball变复数为什么he要变they,难道不是只用改ball去a吗?为什么? There is a ball on it.能否改为It's a ball on it. Tom has a ping-pong ball 改为否定句 Tom( )( ) a ping-pong ball Every boy and every girl是has a ball 还是have a ball, He is got a computer中的 got Tom has ________ that old lady , hasn't he? Yes, because his ball hit her window.Tom has ________ that old lady , hasn't he? Yes, because his ball hit her window. A.got along B.got up C.got into trouble Tom has a ping-pong ball 3Q She has a tennis ball 改为否定句,疑问句