问题
选择题
Thank you for sending us ______ fresh vegetables of many kinds. You have done us _____ great service.
A./; a B. the; a C. /;/ D the; /
答案
答案：A
这题考查冠词的用法：第一空不填，因为是泛指各种蔬菜，第二空填a，形容a good service，“一次很好的服务”，选A。
