it all started中为什么用all all在这里是什么词性 修饰哪个词?

it all started中为什么用all all在这里是什么词性 修饰哪个词? It is high time that they started setting off on a trip ,这句话中为什么要用started , It started raining a little为什么这样用a littIt started raining a little为什么这样用a little? it+started+raining+_________+so+we+decided+to+take+the+train.为什么用a+little Just think it all started ___a guitarA.on B.at C.with D.for为什么? It is recommended that the race ___C__ until all the preparations have been made.A.is not started B.will not be started C.not be started D.is not to be started请高手讲下以下4个答案,为什么要选C,A不可以吗.麻烦给讲的详细点,我 Let's get it started为什么用started而不用start 33-It is recommended that the project _____ until all the preparations have been made.-A.-is not started -B.-will not be started -C.-not be started -D.-is not to be started Everybody has arrived.It’s time we___the lecture.A.shall started B.would startedC.had started D.started答案是D的.就是不知道为什么 Linda was to have started the experiment a month ago为什么要用“To have started ” The pop song concert was so well___that before it started,all the tickets had been sold out.A.acceptedB.received I hope we'll never lose sight of one thing that it was all started by a 英语翻译Eastman is where it all started and where the foundation of being a creative dreamer was built. it is started to 为什么有is It is recommended that the project _____ until all the preparations have been made.A.is not started B.will not be startedC.not be started D.is not to be started started playing a sport 为什么用过去式和ing 形式 It's______ a long time since I started to teach at this school为什么 They should get you started with your project中为什么用started如果是get sb started 是使某人开始什么,那么为什么用your?