We do not know when this world _____. [ ]A. came into power B. c

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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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举一反三

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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He hadn"t seen his mother for a long  time, so when he saw his mother he ____ crying.   [     ]
A. burst into
B. burst out
C. broke out
D. broke down

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