As the world’s population continues to grow,the ________ of food becomes more and more of a concern. (2013·浙江,4)
The old man is telling the boys________ story as__________last time.
Do you know the difficulty he had___________his family ?
They failed to realize the use_____________the information.
Listen ! The matter ___________has something to do with all of us.
_______-after his death that he was recognized as a great composer.