这英语选择题选哪个.21.They planned to hold a grand party to ______ their parents' diamond wedding anniversary as a reward for bringing them up. A. congratulate B. memorize C. observe D. guarantee

问题描述:

这英语选择题选哪个.
21.They planned to hold a grand party to ______ their parents' diamond wedding anniversary as a reward for bringing them up.
A. congratulate B. memorize C. observe D. guarantee