the detectives felt stressed while ______(solve)the murder case.为什么用solving,为什么不用was solvingthought什么时候用复数,单数He said he (would） visit the Palace Museum with his good friends the next day. ?为什么不直接写vi

Did the detectives save the diamonds? The plane was late and detectives were waiting at the airport ．”detectives”没加冠词?我在背课文名词detectives应加the ,为什么没加? The detectives went into the building and waited inside翻译 Did the detectives save the diamonds?为什么不用saved the detectives felt stressed while ______(solve)the murder case.为什么用solving,为什么不用was solvingthought什么时候用复数,单数He said he (would） visit the Palace Museum with his good friends the next day. ?为什么不直接写vi When the plane arrived,some of the detectives were waiting inside the main building while .后面用个some detectives可以不?后面用while什么意思? The plane was late and detectives were waiting at the airport all morning.句中detectives前为什么不加the The detectives went into the buildings and waitedA in B into C inside D for Did the detectives save the diamonds?请帮我变成肯定句 _____ were detectives waiting?At the airport.(a).Why (b).When (c).Where (d).What The detectives were (A)valuabie parcel of diamonds.A.expectingB.waitingC.expecting forD.expecting The detectives were expecting for a valuabie parcel of diamonds是什么意思 I felt the same way the clothes are felt very Sherlock Holmes,is certainly the most famous of all the detectives,____ all over the world.(know)orz often police detectives是什么意思 Detectives' job is to protect___innocent as well as find the guilty.A.a B.an C.the D./ While two detectives were keeping guard at the door请问这里的guard at the door是固定搭配吗?