He doesn't know _ about this event.A.lots of B.lot of C.a lot of D.a lot

问题描述:

He doesn't know _ about this event.A.lots of B.lot of C.a lot of D.a lot

D
没有B lot of 的说法,排除.
lots of =a lot of 后面都必须跟名词,排除A,C
句意是:关于这件事他知道的不多.