患者16岁，男性，1小时前上前牙外伤，查：左上1唇向错位，松动Ⅱ度，叩（±），牙龈轻度红肿，右上1左上2叩（-），松（-），牙髓活力测验同对照牙，X线未见根折，该患者处理为（）

A.自行愈合

B.调观察

C.复位固定，观察

D.牙髓治疗后复位固定

E.拔除

—I didn’t see you when I went to your office yesterday afternoon. Where were you?

—I ____ a meeting in the meeting room.

A．have

B．will have

C．am having

D．was having