[填空题]I have been sent here by the American Shipping Company to talk with you about transportation．

[填空题]In China, most talented students have been sent abroad to ______ -- chiefly at the graduate level.

[单项选择]1 The Earth might have been sent into an ice age by the break-up of a supercontinent 750 million years ago, creating a global snowball.
2 The break-up probably caused an increase in rainfall and weathering of rock, say climatologists. This would have sucked greenhouse gases out of the atmosphere and caused a run-away cooling effect. The mechanism could explain how the entire planet becomes encased in a mass of ice, as many researchers think it has done in the past.
3 The theory that the Earth was once completely frozen emerged in the 1960s, when scientists realized that global freezing could happen if the polar ice sheets grew above a certain threshold size. Because bright ice reflects sunlight and heat back into space, growing ice sheets cause further cooling. This feedback loop could tip the climate system into a deep freeze.
4 The planet could eventually thaw as carbon dioxide from volcanoes poking through the ice warm it.
5 In the late 1980s, Joe Kirschv

[填空题]Real-time deep-sea images have never been sent to the globe before the using of communications technologies.

[单项选择]A new house will have been built here __________ .
A. in this year
B. for one year
C. by the end of the year
D. during the last year

[单项选择]Since we have never been here before, we do not know which bus（）
A. should we take
B. to be taking
C. to take
D. should take

[单项选择]

M: Waitress!
W: Yes, sir.
M: I have been here for 10 minutes now.
W: I’m sorry. What can I do for you
M: How much longer are we going to wait for our dinner
W: Sorry, sir. As you know, the duck takes quite a while to prepare. I’ll go to see about your order. Would you like something to drink while you are waiting
M: All right. Two beers, please.

Where does this conversation take place（）
A. In a restaurant.
B. In a shop.
C. At a station.

[填空题]______ (交通非常拥挤); otherwise I would have been here 50 minutes sooner.

[填空题]______(他肯定遇到急事了), or he would have been here．

[填空题]What have Edmond Brothers been They have been ______.

[单项选择]Everyday there are reports of（　）that have been committed against innocent people.
A. behaviors
B. fixtures
C. subordinates
D. atrocities