实用英语语法精华班  
第15节 虚拟语气  
主讲人:徐国庆  
答案】ꢀ  
5
.couldꢀ6.wouldꢀ7.might  
答案】ꢀ8.Shallꢀ9.would  
10.shouldn'tꢀ11.shouldn'tꢀ12.canꢀ