If I __you ,I 'd wear a shirt and tie （be)填什么?

If I __you ,I 'd wear a shirt and tie （be)填什么? if I were you,I'd wear a shirt and tie 中“tie”为什么不是复数 If I were you I'd wear a shirt and tie.If I were you,I'd tak If I were you,I’d wear a shirt and tie.这里的tie是动词还是名词?为什么? If I were you,I"d were a shirt and tie if l were you,l'd wear a shirt and tie wear a shirt and tie,这里为什么不用a tie? if i were you i'd wear a shirt i'd是什么的缩写 don't 后面一般跟什么否定词. 例句：You don't __[不必]wear a shirt and tie. 求一点英语知识我想问3道英语题：1：“If Iwere you,I'dwear a shirt and tie”.中,为 wear a shirt and I wear a( ) M and she wears a ( )L.括号里填什么?