单项选择题
A．a modern computer won’t be down B．computers can take the place of humans C．there will be great changes in computers D．sometimes a computer may bring suffering to people
A．latchkey children enjoy having such a large amount of time alone B．latchkey children try to hide their feeling C．latchkey children often watch TV with their parents D．it’s difficult to find out how many latchkey children there are
A．we should think before, while and after we read a passage B．we’d better look up every new word in a dictionary C．we should learn to guess the meanings of new words D．the clues in a passage should be made use of