[单项选择]Even the best writers sometimes find themselves ______ for words.
A. lose
B. lost
C. to lose
D. having lost

[单项选择]Even the best student in our class couldn't answer this question, so it （）be very difficult.
A. must
B. could
C. may
D. can

[单项选择]
Even with the best will in the world, reducing our carbon emissions is not going to prevent global wanning. It has become clear that even if we take the strongest measures to control emissions, the uncertainties in our climate models still leave open the possibility of extreme warming and rises in sea level. At the same time, resistance by governments and special interest groups makes it quite possible that the actions suggested by climate scientists might not be implemented soon enough.
Fortunately, if the worst comes to the worst, scientists still have a few tricks up their sleeves. For the most part they have strongly resisted discussing these options for fear of inviting a sense of complacency that might thwart efforts to tackle the root of the problem. Until now, that is, a growing number of researchers are taking a fresh look at large-scale "geo-engineering" projects that might be used to counteract gl
A. strong measures have been taken by the government to prevent global warming.
B. to reduce carbon emissions is all impossible mission.
C. despite the difficulty, scientists have some options to prevent global warming.
D. actions suggested by scientists will never be realize

[单项选择]Which is the best way to find job information according to the passage


A. You have to get in touch with your ex-boss in order to gain help from him.
B. You have to often visit your consultant for the information.
C. You should register to the government.
D. You should always communicate with your friends.

[填空题]Graffiti Writers Serious graffiti writers regard what they do as a kind of _____ (21). Almost all graffiti writers use their skills on a(n) _____ (22) at some time or another. Graffiti writers are attracted to _____ (23) surfaces. Some local authorities have made graffiti writing _____ (24). Writers don‘t seem to be afraid of _____ (25). Graffiti writing on a(n) _____ (26) window is annoying. Graffiti writers are very fond of _____ (27), which are easy to work in. Graffiti writing on _____ (28) sometimes causes accidents. Local authorities would rather spend money on facilities like _____ (29) than removing graffiti. One local authority suggested holding a(n) _____ (30) for writers in an old building.