Use the right form of the future simple tense

I Use the right form of the future simple tense 
1.I (return) .......in May 
2 My father(take)........me to the party.
3 They(not pay) thier bill tomorrow.
4.You (arrive) soon ? 
II Rewrite the sentences ,using '' adj + to-infinitive/noun clause''
1. I passed the exams .I am happy.
2.We are going to clean the environment.We are ready.
3.Keeping people from littering is very difficult.
4 You want to know more about 3R.I am very pleased
5 We are worried .The rivers are becoming heavily polluted.
6.My teacher feels happpy.My class won the first prize in collecting waste paper 
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