问题
选择题
Tina, ________ for months to find a job as a waitress, finally worked as a tour guide at a local advertising agency.
A．struggling
B．struggled
C．having struggled
D．to struggle
答案
答案：C
此句中俩逗号间为状语部分，主语和状语部分的动词为主动关系，且此动词的动作发生在谓语动词表示的动作前，所以选择C项