早教吧 育儿知识 作业答案 考试题库 百科 知识分享

sat语法题!JessepassedtheCaliforniabarexaminationlastyear,andhehasbeenpracticinglawinCaliforniaeversince.(A)andhehasbeenpracticinglawinCaliforniaeversince(B)sincethattimehehaspracticedlawthere为什么不能用B?since

题目详情
sat语法题!
Jesse passed the California bar examination last year,and he has beenpracticing law in Californiaever since.
(A)and he has beenpracticing law in Californiaever since
(B)since that time he has practiced law there
为什么不能用B?since可以作连词的呀?是there的指代不清问题么?可是前面只有California一个地点呀?
sat中什么情况下可以用代词指代?
▼优质解答
答案和解析
如果句中有一个表示过去的时态,表示一个动作于过去的特定时刻发生而另一个动作一直持续到现在.那么,另一个动作就必须使用现在完成时或现在完成进行时.如:James obtained a French visa two years ago,and he has been living in France ever since.
而且你有没有发觉,B项读起来怪怪的吗?没有B选项这种用法的,太怪异了.有时候读一读句子也有助于你判断.