— What happened?— Somehow, the old building ____ flames.[ ]A. burst out B

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— What happened?
— Somehow, the old building ____ flames.[     ]
A. burst out
B. burst into
C. burst up
D. burst with

答案

举一反三

We do not know when this world _____. [     ]
A. came into power
B. came into being
C. came up
D. came across

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It was not until fish ____ that the villagers realized the  importance of protecting the river.   [     ]
A. died away
B. died off
C. died from
D. died out

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He felt lonely in the first month abroad,but after a time he got ____ alone and even got ____ it.    [     ]
A. used to living; to enjoy
B. used to live; to enjoy
C. using to live; enjoying
D. to be used to living;enjoying

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Many of the world"s plants and animals have already___   , and several other species are endangered.     [     ]
A. died away
B. died out
C. died down
D. died off

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— Are you a teacher?
— No, but I  _____. [     ]
A. used to
B. was used to
C. used to be
D. used to do

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