—Who____ it be that is knocking at the door? —It ____ be Father, but I’m not sure.
_______ the trouble they were in, they still managed to help us with some money.
Many of the one-family children are so accustomed to ______ that they react violently when they hear something different.
We each took ______ tea after having ______ wonderful supper at my aunt’s yesterday.
—Volunteering is becoming increasingly popular in China. —Yeah, people are now ____that helping others is helping themselves.
The decision _____, the next problem was how to make a good plan.