I don't know ___to do about it.Awhat Bhowwhat 和 how 在此类句 有何区别

I don't know ___to deal with such matter?A:what B:how C:which D/ I don't know the restaurant,but it's ___to be quite a good one.A said B told C spoken D talked I don't know what clothes I can wear to the party,同义句 I don't know ___ ___ ___to the party. Don't know what i'd do I don't know the restaurant,but it's ___to be quite a goood one选择：said; told; spoken; talled I don't know ___to do about it.Awhat Bhowwhat 和 how 在此类句 有何区别 I don't know. As I was just getting familiar with this job,I had ___to ask my boss.A.manyB.mostC.moreD.muchThe answer to this question is D,I don't know why.Can you give me the reason for choosing “i don't know you know i don't know sorry,I don't know. i don`t know much I don't really know. 英语；I don't know I don't know miss I don't know him. I don't know now 翻译 i don't know So know,I don't