They consider Tom Cruise one of the most famous and best ---

They consider Tom Cruise one of the most famous and best _actors__(act) 怎么做（写理由）他们认为Tom Cruise 是最著名的,最优秀的演员之一。most famous and best作为形容词修饰后面的名词,所以act要写成actor表示演员的意思,而one of又限定了范围,所以actor要用复数actors记得给分呀! 再问： xie 再答： unless 除非,如果不 (= if…not) 　　I shall go tomorrow unless it rains。 　　-- ----Shall Tom go and play football? 　　------Not unless he has finished his homework。 　 if conj。 （表条件）如果；即使；是否；（表假设）假如 n。 条件；设想 例句If there was any disappointment it was probably temporary。 即使有任何遗憾，可能也是暂时的 sometime在某一时候 Why don't you come and see me sometime。 你何不在某个时间来看看我？ some time 一段时间；一些时间；经过若干时间 let's pretend that you are speaking with a friend who had been studying for a test for some time。 我们假设你跟一位朋友在聊天，他已经为一门考试复习了好一段时间。 sometimes adv。 有时，间或 Sometimes I think he dislikes me。有时我觉得他不喜欢我。 some times 好几次I have found some times 希望可以帮到你