二． 被动语态变成主动语态。1.The baby was looked after by his mother .2.W

1.The baby was looked after by his mother .

2.Was he given any bananas?( I )

3.Where were these bikes made by workers ?

4.Basketball wasn’t played on the playground .( thestudents )

5.Iwas heard to sing in the next room .(Tom)

6.That tall building was built three yearsago.(workers)

7.Were your homework finished yesterday ?

8.Planes weren’t made in the factory.(加主语)

9．When were those machines produced?(we)

10.The teachers weren’t listened to by the students