Teenagers should not . A. allowed to driveB. be allow to driving C. be alloweddrivingD. b

问题补充：

Teenagers should not .

A. allowed to drive

B. be allow to driving

C. be alloweddriving

D. be allowed to drive

答案：

A. allowed to drive

B. be allow to driving

C. be alloweddriving

(答案→)D. be allowed to drive

解析：

句意：青少年不应该允许开车。allow：允许。在句中存在被动概念，应用被动语态。故选D。