Liu Fang is a company CEO now, but she ____ as a teacher in a middle school for three years.

A．worked

B．has worked

C．works

D．had worked

くにへ　かえっても　にほん（　）　かんけいのある　かいしゃで　はたらくつもりです。

A．を

B．と

C．の

D．で