This exercise used to be the last one (=Part 6) in Paper 3 (Use of English) of the ESOL Certificate in Advanced English (CAE) by the University of Cambridge . From what I've read, it's not going to be a part of the test any longer. I've always thought it was the easiest part in Paper 3, so this might be the reason they got rid of it ... would you agree? 
Below you've got a text from which six phrases have been removed. These deleted phrases, together with three additional phrases, are placed below the text in random order. You must select the appropriate phrase for each gap in the text (rembember, you need only six of them!)
This task is designed to test awareness of discourse features which operate within and across a text, particularly features of cohesion and coherence.
A but extensive railway systems exist underground so why not huge cities?
B but architects make great efforts to mimic conditions above ground.
C but even being buried just for your working hours may not seem attractive.
D but human psychology makes this possible.
E but who would not accept these working conditions?
F but even the lowest floors get some sunlight.
G but technical difficulties cannot be overcome.
H but a special shower system can create the impression of rain.
I but is there an alternative to building up?
Below you've got a text from which six phrases have been removed. These deleted phrases, together with three additional phrases, are placed below the text in random order. You must select the appropriate phrase for each gap in the text (rembember, you need only six of them!)
This task is designed to test awareness of discourse features which operate within and across a text, particularly features of cohesion and coherence.
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An odd place to live
Everyone needs somewhere to live and work, and humans will construct buildings almost anywhere, using even ice or mud as materials if nothing else is available. In the industrialised world, the problem is not finding materials for building but limited space and the high price of land. The solution in most big cities is to build skyscrapers high into the air . Some architects have proposed turning skyscrapers on their heads and building down into the ground. This may seem an unusual concept . Such places could accommodate 100,000 people without using up valuable surface land. The underground city is technically feasible but there is a massive psychological barrier to be overcome. Will people be able to deal with living away from the sun and sky? The underground ‘city’ could be restricted to places of entertainment and office buildings . Some such buildings do exist. In Minneapolis, USA, there is a building which is 95 per cent underground . This is achieved by an elaborate system of mirrors. Living underground means you do not know what the weather is like . For example, the Asahi television centre in Tokyo is 20 metres below the surface . It seems that subterranean workers miss real weather even when it is bad!
A but extensive railway systems exist underground so why not huge cities?
B but architects make great efforts to mimic conditions above ground.
C but even being buried just for your working hours may not seem attractive.
D but human psychology makes this possible.
E but who would not accept these working conditions?
F but even the lowest floors get some sunlight.
G but technical difficulties cannot be overcome.
H but a special shower system can create the impression of rain.
I but is there an alternative to building up?
Comments
Seems you're pretty good at analysing things such as cohesion and coherence. Well done! [Y]
That one was easy anyway! Some texts in FCE are ever more difficult!