[单项选择]When stocks of Jade Co. ______ public, shares increased by more than five percent.
A. go
B. goes
C. gone
D. went

[单项选择]When stocks of Jade Co. ______ public, shares increased by more than five percent.
A. go
B. goes
C. gone
D. went

[单项选择]When stocks of Jade Co. （） public, shares increased by more than five percent.
A. go
B. goes
C. gone
D. went

[单项选择]When did Apple started to sell shares to the public
A. In 1980.
B. In 1984.
C. In 1976.
D. In 1986.

[单项选择]Computer operating system software has become increasingly standardized. But when a large business with multiple, linked computer systems uses identical operating system software on all of its computers, a computer vandal who gains access to one computer automatically has access to the data on all the computers. Using a program known as a "virus," the vandal can then destroy much of the data on all the computers. If such a business introduced minor variations into its operating system software, unauthorized access to all the computers at the same time could be virtually eliminated. Furthermore, variations in operating system software can be created without any loss of computer compatibility to the business. Therefore, it is advisable for businesses to implement such variations.
Which one of the following, if true, supports the conclusion in the passage
A. Standardization of computer operating system software has increased computer compatibility among different businesses.
B. Correcting any damage resulting from an invasion by a computer virus program is more expensive than preventing the damage.
C. It is not costly for a business to maintain incompatible computer operating systems.
D. There are other kinds of destructive computer programs that do not depend on intercomputer links.
E. (E) Not all businesses need to share data among their internal computer systems.

[填空题]The international situation has been growing (increase) ______ difficult for the last few years.

[单项选择]

There is a new type of advertisement becoming increasingly common in newspaper classified columns. It is sometimes placed among "situations vacant", although it doesn’t offer anyone job, and sometimes it appears "situations wanted", although it is not placed by someone looking for a job either. What it does is to offer help in applying for a job,
"Contact us before writing your application" ,i or" Make use of our long experience in preparing your curriculum vitae or job history", is how it is usually expressed. The growth and apparent success of such a specialized service is, of course, a reflection on the current high levels of unemployment. It is also an indication of the growing importance of the curriculum vitae, with the suggestion that it may now qualify as an art form in its own right.
There was a time when job seeker simply wrote letters of application. "Just put down your name, address, age and whether yo
A. something that would attract attention to one’s application
B. a personal opinion about the organization one was trying to join
C. something that would offend the person reading it
D. a lie that one could easily get away with telling

[单项选择]The inventor（）his original design in order to increase the machine’s efficiency.
A. executed
B. modified
C. cultivated
D. decorated

[单项选择]Over the last 40 years there has been a great increase not only in the number of agricultural pesticides in use but also in the care and sophistication with which they are used by farmers. Nevertheless, the proportion of agricultural crops lost to certain pests worldwide has increased over the same period, even when the pests concerned have not developed resistance to existing pesticides.
Which of the following, if true, best explains how improvements in pesticide use have been accompanied by greater losses to certain pests
A. Some dangerous but relatively ineffective pesticides common 40 years ago are no longer in widespread use.
B. As pesticides have become increasingly pest-specific, controlling certain pests with pesticides has turned out to cost more in many cases than the value of crop losses caused by those pests.
C. Because today’s pesticides typically have more specific application conditions than did pesticides in use 40 years ago, today’s farmers observe their fields more closely than did farmers 40 years ago.
D. Certain pest-control methods that some farmers use today do not involve the use of chemical pesticides but are just as effective in eliminating insect pests as those that do.
E. (E) Forty years ago, much less was known about the effects of pesticides on humans and other mammalian species than is now known.

[填空题]The short supply didn’t meet the demand that (increase)（）rapidly.

[单项选择]Bad Boys Electronics Store found ______ under increased media attention after its manager was indicted for embezzling an undisclosed amount of money.
A. ours
B. theirs
C. himself
D. itself

[单项选择]A new technique ______, the yields as a whole increased by 20 percent.
A. working out
B. having worked
C. having been worked out
D. to have been worked out

[填空题]Companies need to take (action)______steps to increase exports.