As to the long-term effects of global warming some believe that the damage has been done, ______________________.
A. otherwise we take steps to make up now
B. now that we take steps to make up
C. whether we take steps to make up now or not
D. unless we take steps to make up now
He glanced through the guide book, ___________ only those pages __________.
A. reading, concerned B. to read, concerned
C. having read, concerning D. reading, concerning
What best quality ______ most people _______ in others is the willingness to admit one’s mistakes.
A. which, approve B. /, appreciate
C. that, impress D. where, regard
Theoretically, a good screwdriver should last a lifetime, but it rarely___________, usually because it is used at one time or another as ___________ some other tool.
A. should, a favor for B. should, a lack of
C. does, a way of D. does, a substitute for
Not until _________________ the better qualities in ourselves ____________ expect to find them in others.
A. have we developed; can we
B. we have developed; that can we
C. we have developed; can we
D. can we develop; that we will
— Well, lost again!
— It is not very important . We _____ forget about it. OK?
A .cannot but B. have to
C. might well D. might as well
