一、根据句意和所给的中文提示，写出句子中的单词
1．The _________ (发现) of America is generally referred to Columbus.
2．Everyone in our class _______ (除……之外) Mary went to the cinema.
3．There is nothing in the box. It is _______ (空的)．
4．He lay down on the sofa and _____ (闭上) his eyes.
5．You should take the medicine three times a day if you're in ______ (疼痛).
