英语单项求教!If you’re in Florence,Italy and see a man on a ladder
英语单项求教!
If you’re in Florence,Italy and see a man on a ladder ________ the dust off statues and buildings,don’t worry.It’s just Alessandro Ricci ________ material for his famous smog painting.
A.wipe; accumulating B.to wipe; to accumulate C.wiping; gathering D.wipes; to gather
答案为什么是"C"