翻译,并解释join为什么加ed?they said he would go to college if he (joined) the basketball club翻译,并解释join为什么加ed?they said he would go to college if he (joined) the basketball club

翻译,并解释join为什么加ed?they said he would go to college if he (joined) the basketball club翻译,并解释join为什么加ed?they said he would go to college if he (joined) the basketball club 为什么joined?they said he would go to college if he (joined) the basketball club翻译并解释为什么用joined?they said he would go to college if he（ joined） the basketball clubjoin为什么加ed There had been concern about the state of the English language.这句话里concern的解释是什么?整句话该怎么翻译?concern为什么不加-ed? lisa wants to join the chess club中的join为什么不加s The Olympic Games will be held in our country in four years' time.翻译并解释year后面为什么加's time, The doctor checked me over.check为什么要加ed? the door is closed为什么要加ed The boy called Tom 为什么called要加ed? I want to join the chess club 请问为什么要加the? I want to join the art club 这句话的the为什么要加? 动词后面为什么加ed 2为什么要加ed? lasted为什么要加ed mention为什么要加ed Can you to jion the English club?为什么can 后加to呢?Can you to join the English club can 后为什么加to to Join 是固定搭配还是to join the English 前省略东西了？ 为什么 can be changed easily中change要加ed原句the resistance can be changed easily.可以帮我翻译一下吗 “join the school rowing club”一短语中为什么row要加ing说明理由. he wants to join in the school sports club为什么加in