根据句意，用所给单词的适当形式填空。
1.This book offers __________(practice)advice to people with health problems.
2.I can’t understand his (silent) on such an important matter.
3.We’re all sorry to hear that the number of the (Asia) tigers is getting smaller and smaller.
4.The event marked the (begin) of Hepburn’s successful career.
5. He failed the math exam because of his _________(care).
1.practical, 2.silence, 3.Asian, 4.beginning,5. carelessness,