is it It's 12 o'clock

is it It's 12 o'clock It's(o )eight o'clock.It is still early It’s seven o’clock now.What time is it? What( _ _ ) is it?it' s twelve o ' clock. 翻译It is exactly ten o’clock / It’s ten o’clock sharp. （ It’s eight o’clock It's three o'clock. It is nine o clock . It is eight o clock, It’s 12 o ’clock ,it ’ time to ( ) (have) lunch. it's eight o'clock the street is very b_______ ___ is piano lesson?It's at four o'clock.