do not be so pessimistic.帮我解释一下这个be的用法

Do not be so neurotic,ok?naive, when you meet 什么 please do not be so nervous Do not be left in pain,so bad for you I was nothing,so do not be afraid to lose. Do not be so complex that we can not do的中文翻译 If you're so,so I do not promise next time will be soft-hearted是什么意思 Do not do so,to be doing the best.Enjoy life every day! do not be so pessimistic.帮我解释一下这个be的用法 I do not like do not do ...Do not make me do not like to do ...more Do not think so muchmuch unnecessary things ...otherwise the consequences could be disastrous do not woory be Do not be silly do not be quiet. Do not be superficial do not be crying If you ( )(not be) free,you may( )(not do) so much housework( ) you ( ) (do) anything ( ) (prepare) for the meeting You do not think so Do not push me so can not be so serious