英語クイズ　Have you ever . . . ?

下線部の空白を埋めて会話文を完成させてください。

A: Have you ever        to the United States?

B: Yes. Actually I used     live there.

A: Really? Where     the US and for how       ?

B: Mostly    Indiana. I was there      about 20 years.

A: Wow! What did you    ?

B: I     a graduate student in anthropology.