Nowadays people are more concerned about the environment _______ they live.
lsn’t about the time you _____ to do some work?
About a third of the population was estimated to have no _____ to the health service.
The pay is not good, but people usually find social work _____ in other ways.
I can’t _____ that you will make a lot of money.
Henry works in the library now, but he ____ on a farm for three years. A. worked B has worked C. had worked D. had been working