In our country the cold weather in the north_____ sharply _____the hot weather in the south.
----I’ve looked everywhere, but I haven’t found any black ink. ----Then, I’m afraid there is ________left.
—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, _______.