【题目】We often go to work by bicycle, for cycling is very to health and the environment.
A. suitable B. beneficial
C. worthwhile D. valuable
在线课程【答案】B
【解析】考查形容词。句意:我们经常骑自行车上班,因为骑自行车对健康和环境是非常有益的。表示"对……有益"应用beneficial。suitable合适的,适宜的;worthwhile值得做的;valuable有价值的。故选B。