Doctors are always right: you can be healthy without medicine; doctors can help you;
sometimes you can get better without the doctor's advice. 
С чем-то одним из этого составить 5-6 предложений. Начинатся должно с 
-I agree with... 
-I (also) think that... 
...decause...
Или с
-I don't agree with... 
-I don't think that... 
...because if ... then... Besides, ...