perform a play for

perform a play for 一道英文数学题,是有关排序组合的Exactly 4 actors try out for 4 parts in a play.If each actor can perform any one part and no one will perform more than one part,how many different assignments of actors are possibe? perform与play的用法区别 play for a tie 如题.play for a tie Life is like a play, perform with their joysand sorrows什么意思?不知道是什么意思?哪位高手指点指点! When __attentively,the English play will work out fine.A.Performed B.to perform C.performingD.to be performedPlease explain This is the best play ___last year A.To perform.This is the best play ___last yearA.To perform.B.To be performedC.PerformingD.To have performedKey b.Why I have to perform for u to 8 hours a day.填什么呀, be only too pleased to perform a similar service for you should the opportunity ever perform 是play for NBA还是play for an NBA,还是a,还是play for the NBA 有没有perform a performance? perform a perfect mother中perform能换成act吗 Born to perform,play to win 如题! play for a team 的中文 have a play for 啥意思 I play football for(a )two hours To my great joy ,I saw a famous play ()wonderfully in the last night括号里是perform的什么形式?为什么