1.Yes,I do.
2.We mustn't eat anything.
3.He has not to go to see the doctor.
4.Tom does well at music and he is good at violin.
5.I have something for help,David.
6.He is helped to learn English.
7.Did Tony win a new watch?
8.There were not any smart seals.
9.Her patients are always taken good care by Jenny.
10.Does Mr Smith do morning exercise every day?
11.You must not lie down and rest.
12.He goes to the bus station by bike.