单选题Only five years ago, there ______ a shortage of computer specialists.A wasB wereC has beenD have been

题目

单选题

Only five years ago, there ______ a shortage of computer specialists.

was

were

has been

have been

参考答案和解析

正确答案： A

解析：
根据句中ago可知句子用一般过去时，there be句型中be动词的单复数与表语一致，句中a shortage of为单数，所以用was。

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相似问题和答案

第1题：

We can infer from Dr. Myers and Dr. Worm’s paper that ________.

[A] the stock of large predators in some old fisheries has reduced by 90%

[B] there are only half as many fisheries as there were 15 years ago

[C] the catch sizes in new fisheries are only 20% of the original amount

[D] the number of larger predators dropped faster in new fisheries than in the old

正确答案：A

第2题：

______ a shortage of raw materials,industrial output has increased by five percent this year.

A.Though

B.Despite

C.Although

D.Spite

正确答案：B

第3题：

I’m sorry to hear that his father died five years ago.(改为同义句)

I’m sorry to hear that his father has ________ ________ for five years.

正确答案：

been dead

第4题：

● Since RAM is only active when the computer is on, your computer uses disto store information even when the computer is off. Which of the following itrue? （74）

（74）

A．When your computer is on, only RAM is used to store information

B．When your computer is on, only disk drives are used to storinformation.

C．When your computer is off, only RAM is used to store information

D．When your computer is off, only disk drives are used to storinformation.

正确答案：D

第5题：

We may infer from this passage that ______.

A) Mac and Dick McDonald never became wealthy for they sold their ideas to Kroc

B) the location the McDonald's chose was the only source of the great popularity of their drive-in

C) forty years ago there were numerous fast -food restaurants

D) Ray Kroc was a good businessman

正确答案：D
答案：D
[试题分析]事实推理题。
[详细解答]A项迈克和帝克?麦当劳兄弟俩在把经营理念卖给克洛克前并没发财。B项快餐店出名的唯一原因是地点选得准。C四十年前，有无数的快餐店，这些答案都缺乏根据或有失偏颇，不可选。D项克洛克是一个出色的商人，这一点显然可以通过文中在他取得麦当劳经营权后，该店更飞快扩张，直至今日家喻户晓的事实推出来。因此，正确答案为D。

第6题：

Ten years ago he was sent into ( ).

A、the prison

B、prisons

C、prison

D、a prison

参考答案：C

第7题：

It’s not surprising that as a successful businessman, my friend Martin is not ____ he was when he graduated five years ago.

A. that

B. what

C. how

D. why

答案：B

第8题：

Since RAM is only active when the computer is on, your computer uses disk to store information even when the computer is off. Which of the following is true?(74).

A．When your computer is on, only RAM is used to store information.

B．When your computer is on, only disk drives are used to store information.

C．When your computer is off, only RAM is used to store information.

D．When your computer is off, only disk drives are used to store information.

正确答案：D
解析：本题含义可表述为，由于RAN只有当计算机运行时是工作的，所以当计算机关闭时使用磁盘来存储信息。所以应该选择D(当计算机关闭后，只有磁盘被用于存储信息)。

第9题：

Edison invented the light bulb many years ago（改为被动语态）

The light bulb__________ __________by Edison many years ago．

正确答案：
38. was invented

第10题：

If American people borrow money from the bank for 25 years，this means that the person who borrows__________．

A.has twenty-five years to pay back the money
B.has more than twenty-five years to pay back the money
C.has less twenty-five years to pay back the money
D.has about twenty-five years to pay back the money

答案：A

解析：

从文章第一段“The bank usually lends money or gives a mortgage for twenty—five years”得出银行的借期是25年，是一个准确的数字，而不是多于、少于或大约25年。故选A项。

Only five years ago, there ______ a shortage of computer spe

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