Question

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

Answer 1

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”。