（题文）By the time he realizes he into a trap,it’ll be too late for him to do anything about it.
A. walks B. walked
C. has walked D. had walked
I know this is not quite the right word, but I can’t be ________ to think of a better one.
A. disturbed B. bothered
C. troubled D. worried
China,a country with 145 million elderly people,will an aging society during this century,according to Chinese population experts.
A. suggest B. remain
C. replace D. become
The oil price has a lot these days because of the war.
A. gone back B. gone up
C. gone over D. gone out
It seems there are people out of work.Something must be done to create more employment.
A. a great many B. a great many of
C. a great deal D. a great deal of
I always my pens with my classmates because I always made mistakes with my own.
A. took place of B. exchanged
C. replaced D. made use of
