Vul steeds de juiste werkwoordsvormen in.
voorbeelden met het werkwoord: BOIL
Water ______________ at 100 degrees Celcius.
Look! The water _______________!
The water_____________ 15 minutes ago. Now it is cold.
The water _________________, when I entered the kitchen. (past continuous)
The water _____________(not yet). Put the kettle on.
The water ________________ for 5 minutes! You are wasting energy! Turn off the gas!
Would you like a cup of tea? I _______________ some water for you. (future simple)