1 . Practice is the sole ______(标准) for testing truth. （根据汉语提示单词拼写）

2 . Parents should make sure that there are adequate ______ (营养物) in the food for their children. （根据汉语提示单词拼写）

3 . The newly-opened theme park offers a wide ______ (多样) of amusements. (根据汉语提示单词拼写)

4 . Justice is an important ______ (要素) of a good government. (根据汉语提示单词拼写)

5 . Any side ______ (副作用) ought not to be ignored if you try this medicine. (根据汉语提示单词拼写)

6 . It is bad m________to talk with your mouth full. I’ve told you many times. You just ignore it. （根据首字母提示拼写单词）

7 . The experts are working hard to find a ________ (解决办法) to the problem. (根据汉语提示单词拼写)

8 . Twenty years after the event, his death remains a m______.