26. They publish large numbers of fairy tales every year. This year ____ they’ve published 20,000 copies.
    A. only      B. just      C. alone      D. merely
27. -- How long do you suppose it will be ____ he arrives at the small village?
    -- Five hours or so.
    A. when      B. before      C. since      D. after
28. Mary took her study seriously and kate ______.
    A. more so even perhaps       B. perhaps even more so 
    C. probably less as much      D. possibly even so
29. Jane tried to keep up a calm appearance, but her trembling voice ______.
    A. gave her away     B. gave her out 
    C. gave her in  D. gave her up
30. Everybody thinks little of the film. In fact, there is no ______ of it being tried out in the film festival.
    A.sign       B. use      C. doubt      D. possibility
31. Scientists have proposed that gas and dust ____ the black hole don’t fall in but form a certain substance.
    A. surround      B. should surround
    C. being surrounded       D. surrounding