it was sunday,a never get up early on sundays.sunday爲什麼要加S

題目：

it was sunday,a never get up early on sundays.sunday爲什麼要加S
上面打錯一個字，
it was sunday,I never get up early on sundays.sunday爲什麼要加S

解答：

所有的星期天都不早起,並不是特指某一個星期天不早起