请选择DCBA;D6X0S;L0|7o*C-`'N0E8E(D0I,^4] 请打开门。8T*b1L7u;x4F7v+B'I
A. Please, sit down.8T*b1L7u;x4F7v+B'I
B. Open the window, please.8T*b1L7u;x4F7v+B'I
C. The door is big.8T*b1L7u;x4F7v+B'I
D. Open the door, please.8T*b1L7u;x4F7v+B'I