need to give a tip if I eat at a fast food restaurant in theUnited States —Yes, it’s a common ______ to tip waiter in arestaurant

Could we buy a piano, Jack—I’m afraid there ______ enough room for one in the house.

He made it pretty clear from the beginning that we were going to war. _____ she still pretends that she knew nothing about it?

Of all the cities in China, I think Hangzhou is .

It’s certainly hard workBut, ________,a man who wishes to have a career has to make agreat many sacrifices.[ ]