She ______ be iii because I saw her playing tennis just now.
A. can't
B. couldn't
C. mustn't
D. may not
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(As soon) as (we've finished) supper, (we'll all) go (to) downtown to see the Sound of Music.
As soon
B. we've finished
C. we'll all
D. to
【真题试题】(2007年单项选择第15题)人力资源管理的首要职能是( )。
A. 人才开发
B. 人才保持和激励
C. 人才收获
D. 人才评价与调整
I my wallet when I was shopping in the store().
A. must have dropped
B should have dropped
C. could drop
D. ought to have dropped
He abandoned a career that () to his becoming one of the most influential people in the world.
A. could have led
B would lead
C. should have led
D. must lead