问题
选择题
This morning traffic was ____ by an accident outside the town hall.
A.held off
B.held up
C.held on
D.held over
答案
答案:B
考查动词短语。句意:今天早上在市政大厅外交通为一事故所阻。hold off 抵制; hold up举起;阻挡;hold on不挂断电话,等一下;继续;hold
over延期;以…威胁; 结合句意可知选B。