Had they known what was coming next, they second thoughts.
A.may have B.could have
C.must have had D.might have had
The work is so difficult to deal with that I think a man of genius could accomplish the task.
A.nothing B.all C.anything but D.none but
To our surprise, Tom and John, neither of whom regular training, very excellent.
A.have gone through; is B.has gone through; are
C.have gone through; are D.has gone through; is
__________ there is no law stating how you may dress, not all fashions are respectable.
A.Because B.Since C.While D.Unless
Most of the inhabitants (居民) can’t afford to buy houses of their own, because the price is rising ________.
A.all the way B.at last
C.at the same time D.in total
—It’ll take me about two hours to do the work!
—Oh, ! I could do it in half an hour.
A.come on B.no way
C.no problem D.don’t mention it