1.Through their work,the children develop concentration and (joy) self-discipline.
答案joyful
2.They wanted to build friendships with people,regardless of race or (religious).
答案religion
3.After many years of hard work,they finally achieved their (origin) goal.
答案original
4.Dams can be built to store water for (agriculture) use in dry areas and dry seasons.
答案agricultural
5.In a sense,they are spending a (significance) amount of time in fruitless efforts as they multitask.
答案significant
6.The (type) example is computers,which are almost out-of-date once they are bought.
答案typical