问题
选择题
单项选择。
Don't ___ so excited. You must be calm (镇静). [ ]
A. is
B. are
C. be
D. am
答案
答案：C
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单项选择。
Don't ___ so excited. You must be calm (镇静). [ ]
A. is
B. are
C. be
D. am
答案：C
