单选题 When Mohammed, a friend of mine from the Middle East, first went to the United Kingdom to attend the university, ______ with women in the same class.
A. he'd never before studied B. he would never before study
C. he couldn't before study D. he hasn't before studied

【正确答案】 A
【答案解析】该题考的是时态。主句谓语动词的时态很大程度上取决于它与从句谓语动词的关系。该题从句谓语动词是简单过去时,主句谓语动词study发生在从句谓语动词go之前,也即过去的过去,因此A为正确答案。该题题意是:穆罕默德,我的一位来自中东的朋友,初次去联合王国(英国)上大学之前从未与女生同班学习过。