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(A)Some people are entering a bank.
(B)A woman is picking up her purse.
(C)A light is being installed on the wall.
(D)Some people are waiting in a line.

(A)Some materials are being clumped into the back of a truck.
(B)A truck is discharging dirt onto the ground.
(C)A piece of machinery is tearing down a building.
(D)Some equipment has been parked under a roof.