Teenagers allowed to drive in the street .
A. should not be
B. should be not
C. not should be
D. shouldn’t
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(答案→)A. should not be
B. should be not
C. not should be
D. shouldn’t
解析:根据题意,青少年是被允许的对象,故用被动语态,根据青少年不允许在大街上开车,should not be 不应该是shall not be 不愿意是,选A.