1.In 1975,the ______ caused by five days of heavy rains in that area made 233 000 people homeless.
2.People standing under a tree in a thunderstorm are likely to be struck by ______.
3.Many men were ______ underground when there was an accident at the mine.
4.An unexpected storm o when we were enjoying the pleasant voyage at the Yellow Sea.
5.One million five hundred thousand people died in natural ______ between 1980 and 2000.
