(2014·烟台市第二次诊断)Vitamin D helps our bodies make a special chemical，and this special chemical，________，affects our brains，making us feel happy

Which “ow” have different pronunciation(发音)

Have you seen a tall boy ______ a basketball ______into the building

______some people dislike may be others’ favorite.

. China’s quick reaction and the publicefforts have ________ the rapid restoration（恢复）and reconstruction of Wenchuan.