问题补充:
—May I speak to your manager Mr. Williams at five o’clock tonight?
—I’m sorry, Mr. Williams to a conference before then.
A. will have gone
B. had gone
C. would have gone
D. has gone
答案:
(答案→)A. will have gone
B. had gone
C. would have gone
D. has gone
解析:考查时态:句意:-----我可以在今天下午五点跟你们经理Mr. Williams通话嘛?--很抱歉,今晚5点钟前,他将已经去开会啦。和before then连用,用将来完成时。选A。