第1个回答 2006-08-21
1.在一般现在时态中.Trees are planted every spring by us.
2.在现在进行时态中.Trees are being planted by us now.
3.在现在完成时态中.The job has been finished by him.
4.在一般将来时态中.The job will be finished by him.
5.在一般过去时态中.The job was finished by him.
6.在过去进行时态中.The bike was being repaired at nine yesterday.
7.在过去完成时态中.The work had been finished by me.
8.在过去将来时态中.He said that the work would be finished the next week.