As soon as he had hung up,he went over to the workmen and told them that if a policeman ordered them to go away,they wer

1 As soon as he had hung up,he went over - - - -是时间状语从句2 - - - -and told them that if a -- - - -是宾语从句,that 是宾语从句的引导词,可以省略.3 if a policeman ordered them to go away,they were no...