[单项选择]By the time he arrives in Beijing tomorrow, we （　） here for two days.
A. have been staying
B. have stayed
C. shall stay
D. will have stayed

[单项选择]By the time he arrives in Beijing tomorrow, we （　） here for two days.
A. have been staying
B. have stayed
C. shall stay
D. will have stayed

[单项选择]By the time he arrives in Beijing, we （） here for two days.
A. have been staying
B. have stayed
C. shall stay
D. will have stayed

[单项选择]By the time he arrives in Beijing, we ______ here for two days.
A. will have stayed
B. shall stay
C. have been staying
D. have stayed

[单项选择]If professor Jones arrives tomorrow, either you or I ______ to meet him at the airport.
A. are
B. is
C. am
D. were

[单项选择](When each time) he (came) to Beijing (on business), he (would) call on me.
A. When each
B. came
C. on business
D. would

[单项选择]The reason （　） he forgot the time （　） we had appointed doesn't sound very believable.
A. why; when
B. that; when
C. which; which
D. that; that

[单项选择]（　） he does his work, I don't mind what time he arrives at the office.
A. So far as
B. So long as
C. In case
D. If only

[单项选择]Passage One From time to time, we need an expert. In such situations, the Internet has been like a gift from the gods. In the old days, authorities were near at hand for expert advice: the village seamstress on how to make a buttonhole, the blacksmith on how to take care of a horse’s hooves, or the apothecary on what to do about warts. On the Internet, advice and answer sites are popping up all over the place, with self-proclaimed experts at the ready. Exp.com claims to have “tens of thousands of experts who can help you,”while the more restrained Abuzz.com, owned by The New York Times, limits its pitch to “Ask Anything! Real People. Real Answers.” It’s said that expert sites or knowledge networks represent the latest stage in the Internet’s evolution, a “democratization of expertise.” However, if your question is about something other than “Who invented the light bulb”, the answers are likely to be a wild potpourri of personal opinions. Top colleges and universities ar
A. trusts old days experts more than online ones
B. believes that most of the online experts are qualified
C. trusts the intelligence of large amounts of experts online
D. believes that online experts can answer people’s questions better

[单项选择]______ he does his work, I don’t mind what time he arrives at the office.


A. So far as
B. So long as
C. In case
D. Meanwhile

[单项选择]We'll try to finish the work in time though we are short of manpower.


A. 尽管我们人手不够，但还是要努力按时完成工作。
B. 我们将在人员减少的情况下设法把工作做好。
C. 我们尽力完成工作，尽管有时人员会有所减少。
D. 尽管我们人力紧张，但我们时常能设法完成工作。