until一般引导什么从句

　　Until she spoke I hadn't realized she wasn't English.

　　直到她开口说话我才知道她不是英格兰人。

　　They continued until they came to a river.

　　他们继续往前一直来到河边。

　　I'll wait outside until the meeting's over.

　　我要在外面等到会议结束。

　　We didn't arrive back at the hotel until very late.

　　我们很晚才回到了旅馆。

　　We didn't leave until the very end.

　　我们直到最后才离开。

　　Follow this road until you get to the school, then turn left.

　　沿着这条路走到学校，然后向左拐。

　　You may stay until morning, if you wish.

　　如果你愿意，你可以一直待到早晨。