27.A computer__________think for itself, it must be told what to do.
A. can't
B. couldn't
C. may not
D. might not
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28.“Town Hall is the tallest building in the city.”
A. _________from here?”
B. Can it see
Can it be seen
D. Can it seen
E. Can see
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
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
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