16 Rewrite the sentences using the modal verbs in the list. There may be more than one answer . must mustn't should shouldn't • can • could don't have to 1 Do you mind if I leave the lesson early? 2 It's a good idea to carry some insect repellent when you trek through the jungle. 3 Pete is able to skate very well. 4. It's not necessary for you to dust the furniture every day. 5 We are obliged to make our beds every morning. 6 It's forbidden to park your car in a bus lane. 7 It's not a good idea to spend so much time playing video games.

Junk food has for a long time been eaten by people.  It is considered easy to get and cheap to buy.  Lots of commerciasl every day are broadcast  on the radio and TV. 
I strongly believe that advertizing junk  and unhealthy food should be prohibited.  Doctors say that junk food leads to obesity and serious diseases.  Children like it because it looks nice and smells nice.  But they are not aware of the danger. 
Some people may think that such a ban on junk food advertisement is a  violation of rights.  It also poses danger to freedom of speech and mass media, they may think. 
But I consider that our nation's health is more important.  So we must do all we can to teach people to choose healthy food for themselves and their children. Results of scientific research in this field should be made public.  So the people will  finally make the right choice!

Are you leving party now?  Present continiuos
Do you love him? Present simple
Have you ( or have you got )  brothers or sisters? Present Simple
Who cooks dinner tonight а здесь допустимо и Present Simple, и Present Continiuos, англ язык, к сожалению, богат на такие двойственности Who is cooking dinner tonight?
Does he send you an e-mail every day? Проверьте свой текст если send, то так, как я указала выше. Если sent, то Did he send you an e-mail every day? На 4 предложении настаиваю на варианте Who is cooking dinner tonight?