问题补充:
Though having lived abroad for years, many Chinese stillthe traditional customs.
A. participate
B. attract
C. observe
D. risk
答案:
A. participate
B. attract
(答案→)C. observe
D. risk
解析:A. participate参加,B. attract 吸引,C. observe 观察,遵守,D. risk冒险,句意:虽然在国外生活了很多年,很多中国人仍然遵守的是传统的风俗。根据句意选C。