第三磨牙萌出时间为
A.12岁
B.6岁
C.18岁
D.18~25岁
E.25岁以上
参考答案:D
When I lived with my roommates in the university, we ________ often talk into the night.
A.might
B.could
C.should
D.would
驾驶人实习期内可以单独驾驶大型客车、电车、起重车、牵引车。