【正文】
_ 答案 thirty173。seven thousand, eight hundred and twenty 3. 3, 000, 000________________________ 答案 three million 4. 123, 456, 789________________________ 答案 one hundred and twenty173。 Our hometown has changed a lot in recent with 20 years ago, our town has bee twice __1__ (large) than what it used to be from west to east and from south to north. The street has bee much __2__