2道有关时态的英语题
1.-Have you graduated from college?
-Yes,.
A.I studied French for two years.
B.I had studied French for two years.
2.Mr.White works as an officer now,but he in a company for several years.
A.worked B.had worked
第一题选B第二题选A
为什么啊,这两道有什么区别呢?