1．Sleeping too long is a ____________(站不住脚的) excuse for being late.
答案：lame
2．The bus driver ____________(违反) the traffic regulation.
答案：violated
3．My ____________(听觉) has deteriorated as I’ve got older.
答案：hearing
4．Our teachers won’t ____________(容忍) talking loudly in the library.
答案：tolerate
