问题补充:
People in Korea bow when they meet for the first time.
A. supposed to
B. are suppose to
C. are supposed
D. are supposed to
答案:
A. supposed to
B. are suppose to
C. are supposed
(答案→)D. are supposed to
解析:本题的含义为当韩国人初次见面的时候理应鞠躬,be supposed to do表示理应做某事的含义,故本题选D。