1. Eat/ healthy/ diet/ and/ do/ exercise/ regularly/ help/ you/ stay/ healthy.

⇒Eating a healthy diet and doing exercise regularly help you stay healthy.

5. Eat I less I sweet/ food / and I eat I more /fruit / vetgetables

=> Eat I less  sweet food  and  eat  more fruits and vetgetables

7. I/ have/ tooth decay/ so/ I/ have to/ see/ dentist.

⇒I have tooth decay, so I have to see the dentist.

8. Watch/ much/ tv/ not/ good/ your eyes

⇒Watching much TV is not good to your eyes.