●The major problem with Email is that it is (71) easy to use that people can become (72) with messages (73) they can possibly answer in a day.In addition，mail boxes require some management to (74) messages or archive those that might be required later.Senders don't always know about your Email backlog and often send (75) messages.

(71) A．too

B．so

C．very

D．much

(72) A．full

B．lost

C．inundated

D．filled

(73) A．more than

B．than

C．that

D．which

(74) A．manage

B．save

C．backup

D．dispose of

(75) A．toomany

B．redundant

C．long

D．trivial

B,C,A,D,B【解析】E-MAIL的主要問題是如此容易使用以至于人們有可能在一天內答復了的太多的信息導致泛濫。另外，郵箱需要一些手段來處理隨后必須的信息或存檔。發送者不會總是清楚你的郵件積累情況會經常發送多余的信息。