【题目】Rome was not built in a day．You should set ___________ goals and work hard to achieve them.
A． alternative B． considerable
C． subjective D． realistic
在线课程【答案】D
【解析】alternative供选择的；非主流的；considerable相当多的；subjective主观的；realistic现实的。根据句子的意思并结合选项的意思，可题应选D。