Tom is ___________.（）

A．laugh

B．laughing

C．laughed

He’s riding his bike, but it’s ________to rain. (  )

A．starting

B．start

C．starts

He is ______ his homework. (   )

A．write

B．writting

C．writing

What are you doing, Mum? I’m ____.(   )

A．running

B．runing

C．run

改错。
【小题1】Listentothe teacher careful.  
A    B C D     （______）____________
【小题2】Would you show methose pair of short pants?   
A   B C D （______）____________
【小题3】Don’teatsinclass.
A    B  C  D （______）____________
【小题4】Mumiswash the clothes.
A   B  C D （______）____________
【小题5】Are he lookingatthe sun?
A B    C D （______）____________