Computers are our friends_____you use them in the wrong way.
A. because
B. unless
C. as long as
We may become ______
A. lazy and lazy
B. lazier and lazier
C. more and more lazy
We will talk more with virtual friends and talk ____with our real friends.
A. more
B. less
C. least
Many children spend ____time on computer games.
A. too many
B. much too
C. too much