Amazing! Too many private cars are trapped on the highways which is free of charge for the first time, causing heavy traffic jams, some even for several hours.
A. held up
B. broken up
C. taken up
D. given up
网友回答
(答案→)A. held up
B. broken up
C. taken up
D. given up
解析：考查动词短语：A. held up耽搁，延误，B. broken up打破，分手，解体， C. taken up从事，拿起，开始学习，占据，D. given up放弃，句意：太奇怪了，这么多的私家车被困在第一次免费通行的高速公路，导致严重的交通堵塞，有的甚至延误了几个小时。选A。