293.When did he leave the classroom?He left _______ you turned back to write on the blackboard.

A.the minute

B.the time

C.until

D.before

294.Attention please,Flight Nineteen from New York to Washington is now arriving at _____.

A.the two gate

B.a second gate

C.the Gate Two

D.Gate Two

293.答案是A；

the minute表示一…就，类似表达:the second,the instant,the moment。

294.答案是D；

在表示门牌序号时常用名词+基数词。