私は[あなた(達)は, 私達は, 彼らは, 彼は,彼女は, Tomは](その時)勉強して[Smith氏と話して, その国に滞在して, ここに向かって, テーブルについて]いましたか。
Was I [Was he, Was she, Was Tom, Were we, Were you, Were they] studying [talking to Mr. Smith, staying in the country, coming here, sitting at the table] (then)?
