[单项选择]The pot unearthed last month has been found to be a fake and to be ______.


A. valueless
B. invaluable
C. unworthy
D. priceless

[单项选择]The pot unearthed last month has been found to be a fake and to be ______.


A. valueless
B. invaluable
C. unworthy
D. priceless

[单项选择]Joseph, the politician who （）last week, has been released unharmed.
A. is kidnapped
B. was kidnapped
C. has been kidnapped
D. had been kidnapped

[单项选择]Electricity has been found worldwide application since it was discovered（）
A. 电自从被发现以来已经得到世界上的广泛申请。
B. 人们发现电在全世界范围内供不应求。
C. 电自从被发现以来已经得到世界范围的应用。
D. 自从电被发现以来已在全世界使用。

[单项选择]During the last few years, it has been realized that maintenance of programs is more expensive than development, so reading of programs by humans is as important as (67) them.
A. editing
B. writed
C. written
D. writing

[单项选择]Business has been so good over the last two seasons ______ the general manager has promised to take all the staff on a trip to Europe in early July.
A. because
B. before
C. that
D. therefore

[单项选择]In the last year Bennetts has


A. opened a number of new stores.
B. merged with another catalogue company.
C. increased the number of catalogues it delivers.

[单项选择]

It has been a hundred years since the last big one in California, the 1906 San Francisco earth quake, which helped give (1) to modem earthquake science. A century later, we have a highly successful (2) , called plate tectonics, that explains why 1906-type earthquakes happen--along with why continents drift, mountains rise, and volcanoes (3) the Pacific Rim. Plate tectonics may be one of the (4) triumphs of the human mind, geology’s (5) to biology’s theory of evolution. And yet scientists still can’t say when an earthquake will happen. They can’t even come (6) .
What scientists can do right now is make good maps of fault zones and (7) out which ones are probably due (8) a rupture. And they can make forecasts. A forecast might say that, over a certain number of years, there is a certain (9) of a certain magnitude earthquake in a (10) spot. And that you should fix your house to its
A. quivered
B. shivered
C. trembled
D. shaken

[单项选择]It has been more then six months since we last had the opportunity to service your car, and we've missed yon. So we are inviting you to bring your car into our shop for a free inspection and adjustment.