whattimeisit?it`s______ eight o` clock

whattimeisit?it`s______ eight o` clock whattimeisit?it`s______ eight o` clock下面有四个选项 .A．a B .o n C. （ It’s eight o’clock It is eight o clock, It's eight o'clock.怎样提问? It is eight o’clock怎么提问 It's(o )eight o'clock.It is still early it ________around eight o"clock when i drove back home It is eight o,clock .We begin _____(have)classes. It's eight o'clock now.就划线部分提问 It was eight o'clock when I ___ the station. It is eight o'clock.The students (do) morinig xercises.