If i want to buy LCD,what should i know?

If i want to buy LCD,what should i know? i want to know what i should do.同义句 If I want to master English,what should I do what should i say if anyone wants to know i buy a computer in us now I want to know what software i ca i want to know that if i go with you ,you will buy two ticke if you want to buy Harry Potter,i should go to the b____.首字母 what should i do for you?i want to buy a pair of shoes 改错 what do I have to send if I want to buy 【改同义句】 I want to know what I should do next I wan I don’t know what I should buy.(同义句)I don’t know _What to bu i want to buy a mobile but i don't know whether or what styl