【题目】 While listening, remember that it is not __________ to listen only with your ears; you must listen with your brain as well.
A. substantial B. sufficient
C. considerable D. Consistent
在线课程【答案】B
【解析】A大量的;B足够的,充足的;C相当大的;D一致的。句意:记住:听的时候,只用耳朵还不够,还要用脑思考。 故选B。