男，30岁，右侧乳突区疼痛2天，口角向左歪斜1天。最有助于定位诊断的体征是（）

A.双侧皱额和眼睑闭合情况

B.双侧面部痛觉

C.张口时下颌偏斜方向

D.伸舌偏斜方向

E.双侧肢体肌力比较

The letters for the boss ______ on his desk but he didn’t read them until three days later.

A．was put

B．put

C．has put

D．were put