According to the United Nations, an aging society refers to one ____ 10 percent or more of the population is over 60, or 7 percent or more is over 65.
I haven't seen Ann forlong that I've forgotten what she looks like.
–What sort of house do you want to have? Something big? -Well, it_____be big--that’s not important.
It’s going to rain. Xiao Feng, Will you please help me_____the clothes on the line?
Elizabeth has already achieved success_____her wildest dreams.
–The floor is dirty. Can anyone clean it? –_____I do it all the time.