Lora,you ____________ leave all your books on the floor like this!
—What do you think of "Supergirl", the reality TV show? — I can't help _____ it. I got _____ whenever I watched it!
Thereisnodoubt_____100yearsagoanimaltestingwascruelbuttoday animalsinexperimentsareverywelltakencareof.
It was on the farm _____he learned how to grow vegetables.
----I’m going downtown. ----Come on, _______.
My old car I had had ____________ yesterday.