-Did you reach the US the next day?
- No. Somehow . it was three days I arrived there.
A. since
B. when
C. that
D. before
网友回答
A. since
B. when
C. that
(答案→)D. before
解析:句意:第二天你到了美国吗?--不,不知怎么的三天后我才到那里。这里使用了固定句型:It was+一段时间+before+从句,“过了多久才…”,since也可以和一段时间连用,但是句型是:It is/has been+一段时间+since,所以选D。