问题
选择题
It's your turn to be on duty.
_____. [ ]
A. So am I
B. So it is
C. So I am
D. So it is
答案
答案：B
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It's your turn to be on duty.
_____. [ ]
A. So am I
B. So it is
C. So I am
D. So it is
答案：B