题目

题型：不详难度：来源：

Nancy hasn’t begun on her PH.D ________ working on her master’s degree.
A. still because she is yet
B yet as a result she is still
C yet because she is still
D still while she is already

答案

C

解析

because引导原因状语从句，yet是副词，“然而，而”，still 是副词，“仍然，还”。