请认真阅读下面的短文，并根据各题所给首字母的提示，写出一个合适的英语单词完整、正确的形式，填入下面表格，使短文通顺。

A few years ago, an Englishman called Robert went to the countryside in the west of England on holiday. One day he lost his expensive watch when he was 小题1:s  in a river. The next year he went there again. As he was having

小题2:d  in a restaurant one evening, he told the story of his lost watch to the manager(经理). The manager looked 小题3:s   . He said he 小题4:f   a watch in a hole(洞) near the river last month. Then he asked Robert if he wanted to have a look. “OK,” said Robert. When the manager brought him the watch, he jumped with 小题5:j . It was his watch!

诊断阻塞性肺气肿，最有价值的是（）

A.PaO₂低于正常

B.残气量／肺总量＞40％

C.第一秒用力呼气量／用力肺活量＜60％

D.最大通气量低于预计值的80％

E.潮气量低于预计值的80％