---Why are they pulling down the houses? ---________ a new office building.

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was pulling down were pulling down was being pulled down were being pulled down

why for because broke down

will be pulling will have been pulled will have pulled will be pulled

will have been pulled will have pulled will be pulling will be pulled

bringing down pulling down falling dowing putting down

A. Having pulled down Pulled down Pulling down To pull down

will be pulling will have been pulled will have pulled will be pulled

bringing down pulling down falling dowing putting down

Build To build Building Built

down in the dumps over the moon on cloud nine pulling his leg

have pulled be pulling have been pulled be pulled

write down it write it down to write it down writing it down

bringing down pulling down falling down putting down

why it was which why it was that why was it that what was it that

will be pulled had been pulled have been pulled are pulling

Build To build Because of building Built

will be pulled had been pulled have been pulled are pulling

removing pulling down rebuilding dealing with