分类：教育/科学-外语学习-英语考试
问题：3个语法题目?请大家详细解释为什么?谢谢~
--1.You can centainly leave the classroom as soon as your work__? A had done  B has been done   will be done          D had been done --2.A new bridge__near our town right now.A is to be built  B will be built  C is built  D is being built--3.That dictionary__to you.--1.You can centainly leave the classroom as soon as your work__? A had done  B has been done   will be done          D had been done --2.A new bridge__near our town right now.A is to be built  B will be built  C is built  D is being built--3.That dictionary__to you.A is not belonged  B don't belong  C is not belong  D doesn't belong
回答：--1.You can centainly leave the classroom as soon as your work__? 
B has been done 
当你的工作一做完，你当然可以离开教室。
因为主语用将来时，从句用现在时就够，而不是C的将来时。

--2.A new bridge__near our town right now.
D is being built
在我们镇旁边正在建一座新桥。
正在建，用现在进行时，桥被建，用被动。

--3.That dictionary__to you.
D doesn't belong
那本字典不属于你。
belong不及物动词，不能用被动，A C不对。
第三人称单数，选D。