●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的主要问题是如此容易使用以至于人们有可能在一天内答复了的太多的信息导致泛滥。另外，邮箱需要一些手段来处理随后必须的信息或存档。发送者不会总是清楚你的邮件积累情况会经常发送多余的信息。