I really don't know____ A where to travel to B how to solve C what todo it D who to talk to
问题描述：
I really don't know____ A where to travel to B how to solve C what todo it D who to talk to
说理由
答案是D
答
解析：what who that 这都是属于关联代词,他们本身可以做主语或者宾语
where how when都是属于关联副词,做状语,不能做宾语或者主语
做这类题目 只要看后面的动词是否是及物动词,或者是否有介词,如果是及物动词或者有介词
,那么就是用what who ,如没有 就用where,how when
回到此题：
A to 此时是介词,因此不能和where连用
Bsolve是及物动词,不能和how连用
C told 是及物动词,但是后面已经有it作宾语了,再用what就重复了
D to是介词,who做to的宾语,选D
无疑后请采纳.
书山有路勤为径,学海无涯苦作舟.
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