Mary spent her university life in London ,where she ___law for about four years .A.has studied B.would study C.is studing D.studied这里为神马不选A?
问题描述：
Mary spent her university life in London ,where she ___law for about four years .
A.has studied B.would study C.is studing D.studied
这里为神马不选A?
答
spent为过去式
选A时态不统一
答
这只是说明过去曾发生过学了四年法律这个动作,但是并不是到现在为止她学了四年法律