每期五个成语，在句子里填写所缺单词~~
1.The accounts don't seem to be as clear as _____.（一清二楚）2. That boy is always going his own way. He won't listen to his parents' advice.
3. My son's schoolwork has gone to pot. He really lets me down.
4. His performance at school really comes as a bombshell.
5. He never goes back on his word. He is as good as his _____.（一诺千金）
