1.1.
1.Our teeth should be cleaned twice a day
2. The cats had been fed by Ann
3.The pollution problems have been discussed by the ___
4. English is learnt everyday by Tam
5.The meeting will be held ___
6.A book is being read by Tam now
7.All the housework ought to be done by her
8.Tom were being questioned by__
9.My briefcase has been taken__
10.The little boy was bitten by___
2.E2.1.A is being__ 2.C 3.B were arrested 4.D was bought
