Question

Teenagers should be allowed           out on school nights.

A． going

B．to go

C．gone

D．went

Answer 1

B

试题分析：句意: 青少年应该被允许在晚自习时外出。固定短语allow sb to do，允许某人做某事，其被动语态是sb be allowed to do。根据题意应用不定式to do。故选B。