--Mum, where is my toy car? You promised.--_____, my dear, but you know mum is pretty busy today. Tomorrow, OK?
We agreed to accept ________ they thought was the best professor in the college.
I don’t know who invented ________ telephone. It’s really ________ most useful invention.
I know a little bit about the city as I __________ there for one year in my youth.
Could you show me the TV set you’d like ________?
Now an increasing number of middle school students go abroad for further study at their own ________, trying hard to realize their dreams.