The light bulb ______ by Edison in the middle of the 1780s.
-- Look! Mary is working hard.--Yes. She is _________________Being University.
Song Ying is _________kind girl that she has donated almost all her savings to a charity.
--Driving less, walking more is good for our health.--So I’d rather __________ an hour’s walk to work than consider __________a car.
--I am a little hungry, Mom.--There are some cakes on the plate. You can take ________.
It’s all right if you come ___________late.