问题
选择题
I don't think teenagers should be allowed to drive, because they are _____.
A. not enough serious
B. not serious enough
C. too serious
D. to serious
答案
答案：B
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I don't think teenagers should be allowed to drive, because they are _____.
A. not enough serious
B. not serious enough
C. too serious
D. to serious
答案：B