_______ about the health and sound growth of children, the whole society are paying more attention
to the milk product.

________ by the heavy snowfalls, Chenzhou, a city in South China, was cut off from the outside,
________ water and electricity shortage.

A harmonious society is like a symphony orchestra-each person contributes a small sound, but
when ________ with other sounds, it becomes beautiful music.

Though _____ many times, the song still sounds as nice as before