赞题库-背景图
单项选择题

Questions 19 to 22 are based on the passage you have just heard.

A．The police could not see them in the dark.
B．Most of them were armed with guns.
C．There were not enough policemen to catch them all.
D．They were hidden inside big buildings.
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热门试题

单项选择题A．Get a new warranty.B．Buy a new computer.C．Post his computer back.D．Visit the manufacturer s website.

A．Get a new warranty.
B．Buy a new computer.
C．Post his computer back.
D．Visit the manufacturer"s website.

单项选择题A．Why species don t avoid extinction by evolution.B．Why species become extinct by chance.C．Why humans aren t extinct.D．How many species won t be extinct.

A．Why species don"t avoid extinction by evolution.
B．Why species become extinct by chance.
C．Why humans aren"t extinct.
D．How many species won"t be extinct.