Mom tells me to ________ my teeth after eating.
--There is somebody knocking at the door. Who________ it be?--I’m not sure. It ________ be a postman.
----How do you find your new classmates ?--Most of them are kind, but _________is so good to me as Bruce.
--Do you think the math problem was difficult?--Yes. But I could ________ make it.
Please try your best to finish the work with ________ money and ________ people.
Eddie is eight years old, but we have seven candles only, we need______ candle.