We have every reason to believe that our business has shown a(n) ____ to improve.

— Why does he never pick up the waste paper on the ground?— Maybe because he thinks it’s beneath his         to do so．

. A(n) _____ of achievement clearly has an influence on children’s early education.

Soon after the mud-rock flow hit Zhouqu, Gansu Province, many soldiers came to the ______ as many people were trapped underground.

. —Li Hua was in London for two years.   —It’s no ___ he can speak English so well.