-Haven’t we met each other at ________ party?-Yes, but I can’t remember whether it is _________ Christmas when we were in college.
A great person is always putting others’ interests _________ his own.
—I’ve got to go now. —Must you? I ______you could stay for dinner with us.
I like this house with a beautiful garden in front, but I don’t have enough money to buy__________.
—May I open the window to let in some fresh air? —___________
--- Everyone says you are a good student. You never fall asleep in class? --- .