—WhendidyoumeetJackforthefirsttime?—Imethim      theair...

問題詳情：

—When did you meet Jack for the first time?

—I met him       the airport       National Day.

A. at; in                 B. on; on               C. on; in               D. at; on

【回答】

D

知識點：介詞和介詞短語

題型：選擇題