______ the average age of the population increases, there are more and more old people to care for.
A. Unless B. Until
C. As D. While
---I’m thinking of going back to school to get another degree.
---Sounds great!_____.
A. It all depends B. Go for it
C. Never mind D. No wonder
It was really annoying; I _____ get access to the data bank you had recommended.
A. wouldn’t B. couldn’t
C. shouldn’t D. needn’t
The cooling wind swept through out bedroom windows, ____ air conditioning unnecessary.
A. making B. to make
C. made D. being made
When walking down the street, I came across David, when I _____ for years.
A. didn’t see B. haven’t seen
C. hadn’t seen D. wouldn’t see
The dictionary is ______: many words have been added to the language since it was published.
A. out of control B. out of date
C. out of sight D. out of reach
