29.I've thrown away my old trousers. I'll have to buy__________.
A. a new pair
B. a new one
C. some new
D. one
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30.Today's homework is to write__________about your school.
A. a five-hundred-word composition
B. a five-hundred-word's composition
C. a five-hundred-words composition
D. a five-hundreds-word composition
I am__________of the two children in our family.
A. tallest
B. the tall
C. the most tallest
D. the taller
32.I'm sorry to say__________of your answers is correct.
A. either
B. some
C. each
D. neither
33.I had to tell the truth, __________?
A. haven't I
B. wouldn't I
C. didn't I
D. shouldn't I
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