I hope there are enough glasses for each guest to have ___.

 – ______ is your friend ?          – Maria.

---Let’s visit the old people’s house.  ---______ my mother asks me to do homework at home? 

We found          impossible to finish the work in such a short time.

---Are Mr. and Mrs. Wang living alone in the house? ---Yes, they have three sons, but ______ of them live in their own houses.