[单项选择]If we had known the basic principles, we should have controlled the process even better.
A. 如果我们认识这些基本理论，我们就能更好地控制这个程序了。
B. 假如我们了解这些基本原理，我们应该早点控制这个过程。
C. 如果我们见过这些基本理论，那么我们必须更早一点控制这个程序的使用。
D. 如果我们早知道这些基本原理，我们就会更好地控制这个程序了。

[单项选择]If we had known the basic principles, we should have controlled the process even better.
A. 如果我们认识这些基本理论，我们就能更好地控制这个程序了。
B. 假如我们了解这些基本原理，我们应该早点控制这个过程。
C. 如果我们见过这些基本理论，那么我们必须更早一点控制这个程序的使用。
D. 如果我们早知道这些基本原理，我们就会更好地控制这个程序了。

[单项选择]"In the past we were a lonely car maker, but we had good business," says Bernd Engelstadter, technical executive director at Shanghai Volkswagen, adding {{U}}to{{/U}} he arrived in China seven years ago "competition was not a problem".
A. that
B. when
C. that when
D. when that

[单项选择]No sooner had we sat down we found it was time to go.
A. than
B. when
C. as
D. while

[单项选择]No sooner had we sat down （） we found it was time to go.
A. than
B. when
C. as
D. while

[单项选择]No sooner had we reached our destination ______ we all sat down to rest.
A. when
B. then
C. than
D. until

[单项选择]The second sentence of the first paragraph, "We have lived through..., off a hound", intends to say that ______.
A. many rivers and creeks have been excessively polluted by various contaminants
B. our lives depend on flaming rivers and caustic creeks
C. we cannot prevent rivers and creeks from being hounded
D. people cannot live without the supply of water from rivers and creeks

[单项选择]

The Future of General Motors (GM) Is Yours
We have everything college students need to know about GM’ s Cooperative Education and Intern (实习) Programs in our Student Center. Each fall, GM recruiters(招聘人员)visit the campuses of many of the nation’ s top engineering and business colleges and universities to recruit students. These students are considered for interesting assignments throughout our U.S. operations. Check out our Recruiting Calendar to see if GM will be visiting your campus. If your campus is not listed, please apply online.
Will GM start your career moving Fasten your seat belt!
For full-time college students, General Motors offers both a Cooperative Education and an Intern Pro- gram. Participants these real-business-world educational programs gain valuable degree-experience, develop an insider’s understanding of how GM works and earn competitive wages, These programs are de- signed to provide GM with a source of highly talen
A. do a full-time college program
B. major in engineering and business
C. have had some practical experience
D. have gathered information about GM

[单项选择]No sooner had we reached the top of hill ______ we all sat down to rest.
A. when
B. then
C. than
D. until

[单项选择]No sooner had we sat down ______ we found it was time to go.
A. than
B. when
C. as
D. while

[单项选择]No sooner had we reached the office than it began to snow.
A. 我们还没到办公室，它就开始下雪。
B. 我们还没到办公室，天就开始下雪了。
C. 我们一到办公室，天就开始下雪了。
D. 我们一到办公室，它就下雪了。

[单项选择]No sooner had we arrived （） it began to rain heavily.
A. as
B. when
C. than
D. while

[单项选择]"I'd like to buy an expensive camera.""Well, we have several models for you ______."
A. to be chosen from
B. of choice
C. to choose from
D. for choosing

[单项选择]It's nearly 4 hours' drive from here, ______ we have to start very early if we want to get back before dark.
A. meaning
B. considering
C. thinking
D. saying

[单项选择]No sooner had we reached the top of the hill ______ we all sat down.
A. when
B. then
C. than
D. until