—Why didn't Mr.Smith arrive on time for the meeting?—He must have been on his way here in

问题补充：

—Why didn Mr.Smith arrive on time for the meeting?

—He must have been on his way here in the traffic jam.

A. held up

B. put up

C. taken up

D. given up

答案：

(答案→)A. held up

B. put up

C. taken up

D. given up

解析：选A考查动词短语辨析。答句意为：他一定是在来这儿的路上因为交通堵塞耽搁了。hold up“延迟；阻碍”，符合句意。put up“建造；张贴”；take up“从事；占据”；give up“放弃”。