He was too tired and fell asleep with a book open on his knee.
____ knowledge is better than ___ wealth.
I enjoy living in ___ room, ___ window of which opens to ___ south.
It’s ___ time that he has failed in the experiment.However, he has made up his mind to try ___ time next week.
____ lies in North America.
He has thrown away his old shoes.He’ll have to buy ____.