I don't know the place.是什么意思?

I don't know the......the question why?but i don't know the I don't know the place.是什么意思? I don't know. I don’t know the rule.还是I don’t know the rules. Hi,You're Tom's brother,()you?Yes,I am.My name is Jay.Hi,Jay.I'm Liu.()do you know Tom,Liu?Oh,we're in a music group together.Oh,yes.You ()the guitar,() you?(),I do.Do you play the guitar?No,I don't.Do you play()piano?Well,I like piano()()I don't pla （使句子句意不便）1.The computer isn't cheap enough for me to busyThe computer _______________________________buy2.I don't know when we should leave for nanjingI don't know when _____ _____ _____nanjing3.he didn't do his homework .he sat pla I don't(know)the teacher,but I(know about)her.可以换成know about;know? I don't(know)the teacher,but I(know about)her.可以换成know about ; know? “i don't know you know i don't know i know the times i don't have one myself I‘m s（）,I don't know the same I'm sorry,but I don't know the answer. I don't know the way () the post office . I'll ask the policeman____I don't know the way I don't know the w[ ] to the library. I don't know the to the lake中文是什么意思 是I don't know where is the washroom 还是I don't know where the washroom is是I don't know who is the winner 还是I I don't know who the winner is.