i don't know ___ to do with the problem ___ they are facing nowa.what; what b.how; / c.what; / d.how; that选C 求分析

I really don't know what I should write to him.I really don't know ___ ___ ___ to him I don't know who I am going to ___.A talk ...to B talk ...with I don't know how to deal with the problems.(同义句转换)I don't know ___ ___ ___ deal with the problems. I really don,t know which one to buy.改为同义句.I really don,t know which one ___ ___ ___. I don't know how to deal with the problem改为同义句?I don't know how to deal with the problem.I don't know ___ ___ ___ with the problem. I don't know what clothes I can wear to the party,同义句 I don't know ___ ___ ___to the party. I know enough to know that I don't know I don't know where we will go next week.(改为to do结构)I don't know ___ ___ go next week. I don't know how to learn it well(改为同义句）I don't know ___ ___ ___learn it well 根据汉语完成句子 同义句转换：I don't know how to work out the math problem.I don't know ___ ___ ___ ___ ___ the math problemI don't know what to say.I don't know what ___ ___ say.根据汉语完成句子1.这是成 同义句转换：I don’t know where I can go.I don’t know ___ ___ ___. sorry i don,t know what i can do next sorry i don't know ___ ___ ___ next I don’t know what ___ last night.用he happened 还是happened to him 为什么 I don't know what the ___(solve) to her trouble is. I don't know what to ___ ____(处理) these things. i don't know ___ to stay at home or go out if 还是wether I don't know=I am___ ___ i don't know what to do