he doesn't like to use his head and plays all__time when he's free A.a B.the C.an D./
问题描述:
he doesn't like to use his head and plays all__time when he's free A.a B.the C.an D./
答
B. all the time,意思是“一直”,另外几种没有这些用法的,这是固定搭配.