单项选择题

A．Very often.
B．Every week.
C．Just once or twice a month.
D．Every day,
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单项选择题
A．He always apologizes when he is absent.B．He is often absent.C．He is a polite person.D．Many unlucky things have happened to him.
A．He always apologizes when he is absent.
B．He is often absent.
C．He is a polite person.
D．Many unlucky things have happened to him.
填空题
The boss demanded that every clerk in the company (pay) ______ attention to their clothes.
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