I do not know where is the problem

I do not know where is the problem I do not know where is the park.谁能告诉我where is the park是个神魔从句 i do not know where--------- (buy)the dress I do not see her,and I do not know where is she gone. My problem is _ (not know) where to go. —Do you know where my friend is?—I'm not sure.He ____ in the I do not know the love a person is wrong? I do not know where I should buy the new shoes for her（写出同义句 but I do not know where that is also very much hope that you The math problem is so difficult,I don't know __ A how to do I think you know what the problem is just as well as do I do not know how long the river is=I do not know of the riv