题目内容：

给下列句子标上升降调 Do you have a ping-pong ( ) bat?( ) Yes ,I ( ) do.I have a ping-pong ( ) bat.
Do you have a ping-pong ( ) ball?
( )No,I ( ) don't.I don't have a ping-ping ( )ball.
括号里标降调或升调.

优质解答

Do you have a ping-pong (升 ) ball?
(降 )No,I (降 ) don't.I don't have a ping-ping (降 )ball.