Intranet应用软件大致分为两类：一类是安装在服务器上的用于管理共享数据的应用软件，另一类是安装在各用户工作站上的客户端应用软件。（)
It was hot work, but （) Susan would bring us something cold to drink.
A.every so often
B.every how
C.each so often
D.each now and again
At last we found the exhausted animal lying there, （).
A.sick
B.to be sick
C.in sick
D.to be sickening
The rain fell so heavily that water （) through the ceiling.
A.faded
B.leaked
C.leaped
D.fell
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