单选题
编号：2891171
1.Which of the following best represents the order from a harsh command to a very polite request?
a Could you close the door?
b Close the door．
c Please close the door．
d Would you please close the door?
- A.b-c-a-d
- B.c-b-a-d
- C.d-a-c-b
- D.c-b-d-a