A. in the power B. in a power C. in power D. in powers
A. one B. the C. a D. an
A. on foot B. on the foot C. on feet D. by foot
A pleasure B. the pleasure C. pleasure D. pleasures
A. a professor and a doctor B. a professor and doctor C. professor and doctor D. the professor and doctor
A, a B. The, a C. A, the D. The, the
A. by an hour B. by hours C. by the hour D. by a hour
A. five times size B. five times the sizes C. five times the size D. five time size
A. twice as many B. as twice many C. as many twice D. twice many as
A. heard B. listened C. looked D. watched
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