1.the worst thing is to do nothing.
2.lucy is good at english ,so am i .
3.he seems to be worried about his son.
4.they don't like to be/keep away from their family.
5.you'll be able to make money by doing what you love.
/ you'll be able to live by doing the work you love.
6.when is the best time to hold the party?
let's do it tomorrow when you are free.