1)Составьте из двух предложений сложноподчиненное предложение
a. When we met. Do you remember the day? (the day when we met)
b. Why his dog hadn’t returned. We didn’t know. (didn’t know why his dog hadn’t returned)
c. Who are still writing. Bring me the papers of those students. (students who are)
d Where my friend was living. I couldn’t find the house ( the house my friend was living)
e. My friend is fond of horse racings. That isn’t a secret for me. (it isn’t a secret that my friend) (не секрет, что мой друг)