山歌是客家文化中最具代表性的文艺形式之一,其语言生动,神韵自然,内容贴近生活,堪称是民族艺术的奇葩。而山歌之所以能产生和流行,最为重要的客观环境就是这里有“山”。这说明
— Why does the river smell terrible? — Because large quantities of polluted water _______ into it.
Xi’an was the last city ______ he visited when he came to China.
The music ______ she is dancing sounds beautiful.
______ time ______, what the scientist said finally proved to be true.
Mary never does any reading in the evening, __________.