—Doyouknowhowteawasinvented?—Itissaidthatteawasinvented...

問題詳情：

—Do you know how tea was invented?

—It is said that tea was invented ________.

A. by accident  B. on display

C. on sale      D. in surprise

【回答】

A

知識點：介詞和介詞短語

題型：選擇題