1.the glass is broken.(一般现在时被动)
2.his book was borrowed yesterday.(一般过去时被动)
3.this building will be finished next week.(一般将来时态被动)
4.the letter is being read now.(现在进行时被动)
5.the blakboard was being used at this time yesterday afternoon.(过去进行时被动)
6.the book will be being used this afternoon.(将来进行时被动)
7.the letter has been finished (现在完成时被动)
8.the letter had been finished yesterday (过去完成时被动)
9.the letter will have been finished tomorrow.(将来完成时被动)
10.the letter has been being written.(现在完成进行时被动)
请高手赐教!
