写出下面动词的第三人称单数形式和现在分词 1.come( )( ) 2.do( )( ) 3.sit( ) ( ) 4.sing(1.come( )( ) 2.do( )( )3.sit( ) ( ) 4.sing( ) ( )5.studay( ) ( ) 6.begin( ) ( )7.play( ) ( ) 8.write( ) (   )

问题描述:

写出下面动词的第三人称单数形式和现在分词 1.come( )( ) 2.do( )( ) 3.sit( ) ( ) 4.sing(
1.come( )( ) 2.do( )( )
3.sit( ) ( ) 4.sing( ) ( )
5.studay( ) ( ) 6.begin( ) ( )
7.play( ) ( ) 8.write( ) (   )

comes coming
does doing
sits sitting
sings singing
studaies studaying
begins begining
plays playing
writes writting