Why didn’t Mr. Smith arrive on time for the meeting?He must have been on his way

问题补充：

--- Why didn’t 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：短语辨析。Hold up举起，延误；耽搁；put up搭建，留宿，举起；take up占据，从事于，开始做；give up放弃；句意—为什么Mr Smith不能准时到会？—他肯定是在来这里的路上被交通堵塞延误了。故A正确。