—Is the man who is singing your teacher?--- Yes, he teaches _____ physics.
I can’t stand _____ for you so long.
How many ________ are there in the park?
—I am going to Millie’s birthday party this evening, Mum. —, and remember to come back before 10.00 p.m.
—Excuse me, how can I get to the post office? —Go the bridge and turn left. Walk the museum, and you’ll see it.
—enjoy Beijing opera with me? — Good idea.