English grammar specialized

Look at the following sketches of the buildings from different parts of the world. Compare the buildings from the following points of view :(Ss work in pairs)

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Make questions for given answers. Read the questions: Why are the upper floor steel columns erected before the roof decking has been put in place? or Why is the roof decking put in place after the upper floor steel columns have been erected ?

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When designing a building for a group of people, an architect considers the maximum, minimum and average dimensions of their bodies. For each design situation shown below say which dimension an architect should base his calculations on:

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