1.Though having lived abroad for years,many Chaniese still ____the traditional customs.
A perform B possess C observe D support
2.In those days ,our ___concern was to provide people who were stoppde by the snow storm with food and health care .
A normal B constant C permanent D primary
第一道题为什么选C，而不选其他的呢？
第二道题为什么选D，而不选C呢？
