19. The League secretary and monitor _______ asked to make a speech at the meeting.
A. has
B. have
C. are
D. is
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20. Nobody except Bill and John _________ entered the second round of the interview.
A. have
B. has
C. have been
D. has been
21.To play basketball and to go to swimming ________ useful for character-training.
A. was
B. is
C. are
D. were
22. We each ______ strong points and each of us, on the other hand, _______ weak points.
A. have; have
B. has; have
C. has; has
D. have; has
处方直接写药名,应付生品的是
A. 白芍
B. 王不留行