问题
选择题
There is a(n) _______ bus service into the center of town, which makes it much easier for farmers to go to sell their vegetables there.
A．frequent
B．gradual
C．official
D．reasonable
答案
答案：A
题目分析：考查形容词：A. frequent频繁的，经常的，B. gradual逐渐的，C. official官方的，D.reasonable合理的，句意：到镇中心有一趟公共汽车班车，这使得农民去卖蔬菜很方便。选A。