I don't know how I can get to the railway station.

I don't know how I can get to the railway station. where is the railway station?I don't know.合并成一句 I don't know i don't know how i can get to the nearest post office.(原意) i I don't know how I can get to the airport(改同义句） I.don't know I don't know how I can get to the airport. (同义句) I don't know how I can get to the museum.（改为同义句) I don't know how I can get to the hospital改成简单句 同义句：I don't know how I can get to the post office. I don’t know how I can get to the nearest supermarket.(改为简单句 I don′t know how I can get to the nearest supermarket. I don't know I can get to the zoo I have no idea how I can get to the railway station.请问这个同位语从