问题补充:
Not all of the snakes were dangerous. this means .
A. none of the snakes were dangerous
B. all of the snakes were not dangerous
C. few of the snakes were dangerous
D. no snakes were dangerous
答案:
A. none of the snakes were dangerous
(答案→)B. all of the snakes were not dangerous
C. few of the snakes were dangerous
D. no snakes were dangerous
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