Half of the workers here ________ under 30 ________.
A. is; years
B. are; year old
C. is; years old
D. are; years of age
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Now Tom with his classmates ________ football on the playground.
A. play
B. are playing
C. plays
D. is playing
The number of pages in this dictionary ________ about two thousand.
A. are
B. has
C. have
D. is
Thirty dollars ________ too expensive.
A. are
B. is
C. were
D. be
The secretary and principal ________ at the meeting now.
A. are speaking
B. is speaking
C. were making a speech
D. have a speech