_______ to catch the early train,but I didn’t get up in time. I have to stay here for another two days.

You ______ it up during the meeting——I_______ know it was so sensitive an issue.

It’s thirty years since we last met.—But I still remember the story, believe it or not, __________ we got lost on a rainy night.

下列各句中，没有语病的一句是（3分）（ ）

When I try to understand ____ that prevents so many Americans from being as happy as one might expect, it seems to me that there are two causes.