though he is an___worker,he works very hard.

问题描述:

though he is an___worker,he works very hard.
a.ordinary
b.common
c.usual
d.general
应该选哪个,还有这四个词有什么区别?
到底选哪个?

ordinary 平常的;common普通的;usual通常的;general一般的.
从以上意义上可以区别出来.
所以此题选b