Please close the windows

• Let the windows be opened.

• You are asked to close the windows.

• You are requested to close the windows.

• Both (b) and (c)

Hold the door open

• Let the door be closed.

• Let the door be held open.

• Let the door be locked.

• • Let the door be left alone.

Don't let the dog out of the kennel

• You are ordered not to let the dos out of the kennel

• The dog should not be let inside the kennel.

• The dog should be let out of the house instead.

• The dog should not be kept in the kennel.

Mother wants your things to be packed neatly.

• Mother wants you to pack your things messily.

• Mother wants you to leave your things as they are.

• Mother want you to pack your things neatly.

• Mother wants you to unpack your things neatly.

They removed the notice.

• The notice is removed by them.

• The notice was removed by them.

• The notice is being replaced by them.

• The notice had been removed by them.

The police caught the thief.

• The thief has been caught by the police

• The thief had caught by the police.

• The thief was caught by the police.

• The thief is caught by the police.

A new bridge is being built by the engineers.

• The engineers have built a new bridge.

• The engineers had been building a new bridge.

• The engineers built a new bridge.

• The engineers are building a new bridge.

The invitations have been sent by the event manager.

• The event manager sent the invitations.

• The event manager has sent the invitations.

• The event manager is sending the invitations.

• The event manager was sending the invitations.

The package will be delivered by the courier tomorrow.

• The courier will deliver the package tomorrow.

• The courier delivered the package tomorrow.

• The courier delivers the package tomorrow.

• The courier has delivered the package tomorrow.

They are organizing a charity event.

• A charity event has been organized by them.

• A charity event was organized by them.

• A charity event is being organized by them.

• 
  A charity event was being organized by them.