Correct the mistakes. 1. fast food is easier and convinient. 2. he is more healthy in his class. he does exercise every day. 3. mike is more fitter than his friends. 4. what is your height? you are tall than me.

1. Fast food is easy and convinient.
2. He is the most healthiest  in his class. He does exercise every day
3. Mike is more fitter than his friends.
4. What is your height?You are taller than me.