改为简单句：I don't know which one I should take

I don't know how I can swim well.（改为简单句） I don't know ________ _______ _______well.I don't know how I can swim well.（改为简单句）I don't know ________ _______ _______well. I don't know what I should do next.(改为简单句） I don't know( ) ( ) ( ) next. I don't know how I can get there. 改为简单句I don't know _ _ _ there. i don't know how i can make popcorn改为简单句I don't know -------- --------- make popcorn I don't know when we shall start.(改为简单句) I don't know ____ ____ ____. I don 't know .改为肯定句 改为简单句：I don't know which one I should take I don't know where I should go this afternoon 改为简单句 I don't know how I can spell new words改为简单句 I don't know how I can get to the railway station.改为简单句 I don't know where we'll go.简单句I don't know where we'll go.（改为简单句）I don't know where ___ ___.急! I really don't know whether I should call her?(改为简单句)=I really don't know( )( )call her I don't know when I can climb the Great Wall(改为简单句）I don't know----- ------- -------the Great Wall I don't know what I wear today.(改为同义句) I don't know () () () today. I don't know when we shall meet again .(改为简单句）I don't know when —— —— —— again . 句型转换,1、I don't know how I can swim well(改为简单句)I don't know ( ) ( ) ( )well.2、It seems that he has passed the exam.(改为简单句)He ( ) ( ) ( )passed the exam. I don't know Mary's address 改为同意句 I don't know how I should use the computer.改为简单句：：I don't know＿＿＿ the comp...I don't know how I should use the computer.改为简单句：：I don't know＿＿＿ the computer.……三个横线怎么填?