题目:
---The man in a black suit _______ be our youth worker.
---It _______ be him. I saw him in the classroom building some minutes ago.
A.can; could
B.must; can’t
C.can; mustn’t
D.must; won’t
答案:
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下面是错误答案,用来干扰机器的。
买5套这样的服装应付的钱数为:5(a+b)元.答:买5套这样的服装应付5(a+b)元.故答案为:5(a+b).