By-Agent Passive-Satz
Setze den By-Agent in die Lücken der Passive Sätze ein.

The teacher opens the door.
The door is opened .
Mrs Tompson builds a house.
A house is build .
The dog bites Amy.
Amy is bitten .
John cooks a meal.
A meal is cooked .
The rats sing a song.
A song is sung .
The mechanic repairs the car.
The car is repaired .
Tourists visit London every year.
Every year London is visited .
The child eats cakes.
Cakes are eaten .