问题
选择题
Being physically examined for free twice a year is what every clerk _____ be ensured in any company of the
state.[ ]
A. must
B. shall
C. ought to
D. need
答案
答案：B
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Being physically examined for free twice a year is what every clerk _____ be ensured in any company of the
state.[ ]
A. must
B. shall
C. ought to
D. need
答案：B