___ information___ stored in this computer．
A．Large quantities of, have been B．A great many, has been
C．A large quantity of, were D．Quite a lot, is
Please don’t bother me again. I’ll inform you of the details at a/an time if you must know.
A. appropriate B. convenient C. acceptable D. accessible
I just don’t understand that leads to so many teenagers addicted to playing computer games.
A. why it is B. what it is C. what it does D. why it does
These problems may lead to more serious ones, if unsolved.
A. remained B. keeping C. left D. making
His efforts to raise money for his program were ____ because no one showed any intention to take a cent out of their pockets.
A. in place B. in sight C. in effect D. in vain.
Today, people are paying more and more attention to their health, books on keeping healthy extremely hot.
A. to make B. making C. make D. made
