单项选择题

Questions 23 to 25 are based on the conversation you have just heard.

A．Once a week.
B．Three every month.
C．Five every month.
D．Two every month.
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问答题
青少年犯罪成为社会焦点，父母应该负责；2．父母应该负责的原因。
单项选择题
A．Because it isn’t closed.B．Because the students have to pass all examinations before entering it.C．Because there is no examination before they are accepted as students.D．Because its door is open.
A．Because it isn’t closed.
B．Because the students have to pass all examinations before entering it.
C．Because there is no examination before they are accepted as students.
D．Because its door is open.
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