Computer data bases and electronic mai...

单项选择题Computer data bases and electronic mail systems have been around since the late 1970s.（）

A．计算机数据库和电子邮件自20世纪70年代末，便无处不在了。
B．20世纪70年代后期以来，计算机数据库和电子邮件系统已被广泛使用。
C．20世纪70年代末，计算机数据基础和电子邮递系统就已经在大家周围了。
D．在20世纪70年代后期，计算机数据库和电子邮件已普及了。

1.单项选择题Since we cannot find a more appropriate word, let's leave it as it is.（）

A．因为我们不能找到一个更合适的词，就这样好了。
B．既然不能发现更好的词，我们照这样离开好了。
C．因为找不到像这样更好的词，我们走吧。
D．既然找不到一个更适合的词，就不改动它算了。

2.单项选择题His work was（）than that of any other man in the school.

A、by far better
B、better by far
C、by far the best
D、the best by far

3.单项选择题（） anyone ring, ask him to leave a message, and I will call back.

A、Would
B、Should
C、Might
D、Supposing

4.单项选择题Henry wasn't paid because he was the （） secretary of the association.

A、honorable
B、honor
C、honored
D、honorary

5.单项选择题The most important outcome of education is to help students become independent （） formal education.

A、from
B、of
C、to
D、on

6.单项选择题Scarcely （） asleep when the phone rang.

A、had I fallen
B、I had fallen
C、fell I
D、I fell

7.单项选择题Many representatives are in favor of his proposal that a special committee （） to investigate the incident.

A、were set up
B、was set up
C、be set up
D、set up

8.单项选择题The mother didn't know who （） for the broken window.

A、blamed
B、to blame
C、be blamed
D、would blame

9.单项选择题She may have missed her train, in （） case she won't arrive for another hour.

A、that
B、which
C、this
D、its

10.单项选择题He wasn't appointed chairman of the committee,（） not very popular with its members.

A、being considered
B、having considered
C、to be considered
D、considering