初三英语完型填空The population problem may be the 1 one of the world today. The world's population is growing 2 . Two thousand years ago, there were only 250 million people 3 the earth. Four hundred years ago, the number was 4 500
The third kind of loneliness is the most severe.Unlike the others chronic (the opposite of “temporary”) usually lasts more than two years and has no specific cause.38. Unfortunately,many chronically lonely people think there is little or nothing they can do to improve their condition. Psychol...