But the unpleasant feeling of coldness disappeared at the _______ of his students pouring out of their classroom to give him a warm, wordless welcome.

1. A.
   sight
2. B.
   scene
3. C.
   view
4. D.
   Sign

But for the help you gave me, I _______ the examinations.

1. A.
   would have passed
2. B.
   would pass
3. C.
   wouldn’t have passed
4. D.
   wouldn’t pass

But when I got _______ the town ought to have been, all I found was a gas station．

1. A.
   where
2. B.
   which
3. C.
   what
4. D.
   that

But for their help，we         the program in time．(D)

       A．can not finish                         B．will not finish

C．had not finished                       D．could not have finished I

But for their help，we ______ the program in time.

A. can not finish            B. will not finish

C. had not finished          D. could not have finished