Seeingthecartrappedinthesnowdrift,thedriverdidn’tknow______it.
A.how to doB.what to doC.how to deal withD.how to do with在线课程C
解析：
句意为：看到车子陷进雪堆，司机不知道怎么办。从句意看，表达“应付, 对付; 处理”用do with或deal with，但do with不可与how连用。