5. Составьте из двух предложений сложноподчиненное предложение
a. I am wearing now. The shoes are rather comfortable.
b. That’s why we had to return home. It was too cold.
c. Who are still writing. Bring me the papers of those students.
d. Mother is on her way home. I think.
e. Where my friend was living. I couldn’t find the house.