13. --May I put my luggage on the seat beside you, sir?
--__________.
| A.Sure, with pleasure | B.Oh, please yourself | 
| C.Well, never mind | D.It’s my pleasure. | 
They are those _________ bags.Please put them on the bus.
| A.visitor | B.visitors | C.visitor's | D.visitors' | 
--- How many workers are there in your factory?
  --- There are two ___________.
| A.hundreds | B.hundred | C.hundred of | D.hundreds of | 
---What do you think of the _______ the Moonlight Sonata by Beethoven?
  --- It sounds really wonderful.
| A.subject | B.music | C.book | D.Animal | 
There is not enough _________ in the corner for the fridge.
| A.place | B.room | C.field | D.Ground | 
_________ comes from sheep and some people like eating it
| A.Wool | B.Pork | C.Mutton | D.Milk |