I an important conference at 10 o’clock this Sunday morning.
A. will have attended
B. will be attending
C. have been attending
D. have attended
网友回答
A. will have attended
(答案→)B. will be attending
C. have been attending
D. have attended
解析：考查时态：句意：--这个星期天早上我将正在参加一个重要的会议。说明参加重要的会议是将来某个时间正在做，用将来进行时，选B。