Переведите предложения, выбрав правильную форму сказуемого (Active or Passive). 1)

Переведите предложения, выбрав правильную форму сказуемого (Active or Passive).
1) Regular operations in the sorting yards (have already planned; have already been planned).
2) Numerous changes (have мейд; have been мейд) in the design of the vehicle. 3) The major marshalling yard (will have modernized; will have been modernized) with the latest operating equipment by the end of the year.
4) After the signalling (had improved; had been improved) a more frequent service of trains was provided.
5) Powerful track-laying machines (have developed; have been de-veloped) for the construction of railroads.