当前位置: X题卡 > 所有题目 > 题目详情

By the time he was twelve years old,he   a chemistry lab of his own. A.had been set up B.had set u...

查看本题答案

你可能感兴趣的试题

At that time    Day by day    As a result    At the same time  
a;an  the;a  the;an  the;the  
would begin    has begun    had begun    was begun  
would begin    has begun    had begun    was begun  
. had been set up    had set up    have been set up    have set up  
He is twelvE.    He's much better.    He is a doctor.    He's Allan.  

热门试题

更多