Opportunity 🔊 Problem 🔊 Decision 🔊 Choice 🔊

Competition 🔊 Meeting 🔊 Exam 🔊 Class 🔊

Simple 🔊 Difficult 🔊 Important 🔊 Special 🔊

Must 🔊 Maybe 🔊 Can 🔊 Should 🔊

To practice 🔊 To teach 🔊 To test 🔊 To rest 🔊