单选题：How often should me bus come to meir stop?

题目内容：

How often should me bus come to meir stop? A．Every twenty minutes．
B．Every half an hour．
C．Once a day．

参考答案：

答案解析：

What’s wrong wltIl the maIl?

What’s wrong wltIl the maIl?A．He overslept again． B．Hc can’t tell me womaIl the

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