题目内容：

（exist necessarily accustomed gap arrangement）
1.You must let the kids know:one will come across many difficulties in one's life and a life free from all worry just doesn't_____.
2.Learning a foreign language well can help bridge the_____between different languages and cultures.
3.In order to find them easily,we should make a careful_____of the books in the library.

优质解答

1.exist
a life free from all worry just doesn't exist
无忧无虑的生活是不存在的.exist 存在的意思
2.gap
bridge the gap 架起一座桥梁（联系）的意思
3.arrangement 安排的意思