把下列句子改为被动语态.1.We will ask Professor Wang to attend the lectu
把下列句子改为被动语态.
1.We will ask Professor Wang to attend the lectures.
2.They cut down many trees every year.
3.Who is taking care of your baby?
4.I was repairing the car then.
5.Have they built the bridge in Yangzhou?
6.My mother had cooked supper when I got there last time.
7.We have sent the wounded man to the hospital.
8.The girl whom we met this morning can speak French.