Question

3) passe para a  forma interrogative: 
a) tina and patrick Will arrive from a long trip next week.
b) fred Will do all the exercises for the tests.
c) all my friends Will prepare the party next month.
d) my new teacher Will learn libras next year.
e) I Will give you a bike.

4) use a forma negative do Will:
a) my mother Will wash the dishes tomorrow.
b) they Will buy new furniture next week.
c) my cousin Will go to another school next year.
d) the bus Will arrive soon.
e) rita Will paint her hair next week.

5) complete com " os pronome reflexivos:
a) we looked after ---------------- when our parents went abroad. 
b) jane worked at the restaurant by ------------.
c) getulio vargas killed ------------------ with a gun in 1954.
d) the children are not behaving ----------------.
e)the animal cut ---------.

Answer 1

3.a) Tina and Patrick Will arrive from a long trip next week.
R: Will Tina and Patrick go arrive from a long trip next week?
b) fred Will do all the exercises for the tests.
R: Will Fred go do all the exercises for the tests?
c) all my friends Will prepare the party next month.
R: Will my friends go prepare the party next month?
d) my new teacher Will learn libras next year.
R: Will my new teacher go learn libras next year?
e) I Will give you a bike.
R: Will I go give you a bike?

4.a) my mother Will wash the dishes tomorrow.
R: My mother will not wash the dishes tomorrow.
b) they Will buy new furniture next week.
R: They Will not buy new furniture next week.
c) my cousin Will go to another school next year.
R: My cousin Will not go to another school next year.
d) the bus Will arrive soon.
R: The bus Will not arrive soon.
e) rita Will paint her hair next week.
R: Rita Will not paint her hair next week.

5.a) we looked after ourselves when our parents went abroad.
b) jane worked at the restaurant by myself 
c) getulio vargas killed himself with a gun in 1954.
d) the children are not behaving themselves
e)the animal cut yourself

Answer 2

Assim está correcto:
3) passe para a  forma interrogative: 
a) Will tina and patrick arrive from a long trip next week.
b) Will Fred do all the exercises for the tests.
c) Will all my friends  prepare the party next month.
d) Will my new teacher  learn libras next year.
e) Will I give you a bike.

4) use a forma negative do Will:
a) my mother Will not wash the dishes tomorrow.
b) they Will not buy new furniture next week.
c) my cousin Will not go to another school next year.
d) the bus Will not arrive soon.
e) rita Will not paint her hair next week.

5) complete com " os pronome reflexivos:
a) we looked after ourselves when our parents went abroad. 
b) jane worked at the restaurant by herself.
c) getulio vargas killed himself with a gun in 1954.
d) the children are not behaving themselves.
e)the animal cut  itself

Como pode observar a diferença entra a afirmativa e a negativa é que você apenas tem que escrever a palavra "not" depois de "will". Também pode colocar " won't" no lugar de "will not", é o mais comum já que as formas largas se utilizão quando você quer dar mais enfaze à negação.
Ex: Luis wiil be a doctor.
       Luis will not be a doctor.

Para formar a forma negativa você tem que inverter o sujeito e "will" de posição.
        
Ex: Luis will be a doctor.
      Will Luis be a doctor?

Espero que tenha ajudado a que entendesse melhor.