30.Mr.Wang wrote a book on teaching when he was__________.
A. sixties
B. in sixties
C. in the sixties
D. in his sixties
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31.After his mother bought him an ice cream, the little boy became a little__________.
A. happiest
B. happily
C. more happily
D. happier
32.__________of the boys has got a pencil and some paper.
All
B. Every
C. Everyone
D. Each
33.“__________will you finish the job?”“In ten minutes.”
A. How often
B. How long
C. How soon
D. How many times
34.No one can be sure__________in a million years.
A. what man will look like
B. what will man look like
C. man will look like what
D. what look will man like
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