After cleaning the floor, I went on ________the window.A to cleanB cleaningC clean

听力原文：（A) Some people are looking for a statue.（B) The floor is being cleaned.（C) Peopl

At the shopping centre they went up in the ______ to the shops on the second floor.A．stree

听力原文：（A)The man is mopping the floor.（B)The man is pulling the cart with cleaning prod

The boys in the dorm____a coin to decide who would clean the floor.（2012-77)A．heldB．tossed

After the initial cleaning of flue gas in an iner

As a cleaning woman her ______ duties include cleaning the desks and mopping the floor.A.