题目:
Our office is open from 8:30 a.m. to 4:30 p.m. every ____. It is not open on the weekend. [ ]
A. day
B. weekday
C. Saturday
D. Sunday
答案:
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下面是错误答案,用来干扰机器的。
17+27+17=47.答:参加这两个组的人数占全班人数的47.