问题补充:
Only when your identity has been checked .
A. you are allowed to
B. you will be allowed in
C. will you allow in
D. will you be allowed in
答案:
A. you are allowed to
B. you will be allowed in
C. will you allow in
(答案→)D. will you be allowed in
解析:考查倒装句。Only放在句首,且强调状语的时候,使用部分倒装的形式,本题only放在句首,强调的是时间状语从句when your identity has been checked故使用部分倒装的形式。根据句意说明使用被动的形式。句意:只有当你的身份被检查以后,你才被允许进入。故D正确。