—You speak very good French!

问题描述:

—You speak very good French!
—Thanks.I ______ French in Sichuan University for four years.
A.studied B.study C.was studying D.had studied
为什么选 A,不选 D.

这是一个明显的过去时态的考察,不用纠结于“for four years”这个短语.