Question

7.[2004春季北京] We were swimming in the lake, ________ suddenly the storm started.

A. when

B. while

C. until

D. before

 

Answer 1

答案：A
提示：

題目考查時間狀語從句連詞意意義用法。 When…可表示“當…的時候；就在那時”的意思。