og11-86B Although early soap operas were first aired on evening radio in the 1920’s, they were moved to the daytime hours in the 1930’s .本题没有强调先后顺序,而且前半句有明确的时间限制,应用一般过去时。
E,过去完成时表示动作发生在过去的过去,但是它同时表示动作完成在过去的过去.举个例子:he had done the work at the 6:00.表示动作是在六点做完的;he did the work at 6:00.表示做这个工作是在六点,没有完成的含义(摘自章语法).从这道题来看,这个方法在18世纪就产生了,并且一直有,用完成时明显不符合逻辑,错.