赞题库-背景图

单项选择题

A lot of school boys simply ______ all day when they are supposed to be at school.

A．mess around
B．carry on
C．pull up
D．get through

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热门试题

单项选择题The peak for text messaging is between ______.

A．10:30 pm and 11:00 pm
B．7:30 am and 8:00 am
C．10:30 am and 11:00 am
D．8:00 pm and 10:30 pm

单项选择题What is the function of the new device mentioned in the health report

A．It is used to destroy cancer cells.
B．It makes identification of AIDS easier.
C．It kills the human immunodeficiency virus.
D．It helps strengthen the body’s natural defense.