We did it together; it was a(n )() effort（请根据课本内容填空）
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Another big challenge is the interview-it is critical.（请根据课本内容判断）
A. 对
B. 错
Why do you want this job?这句话无语法错误。
A. 对
B. 错
I left for Shanghai the same day ashe did for Bel]ing.（请根据课本内容判断）
A. 对
B. 错
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