题目内容：

1.他正在做的事情与他的工作无关
what he is doing _ _ _ _ _his work
2.她在水中挣扎时,碰巧被约翰瞧见
John_ _ notice her while she was struggling in the water
3.是因为他没赶上公交车才没能按时去工作吗
Was it_ _ _ the bus_ he didn't go to work on time?
4.这是你这周第二次迟到了
This is the second time that you_ _ _this week
一空一词..