i get up at six o'clock,这句中的six o'clock是时间状语,为什么我也觉得是介词短语呢?是不是从不同方面看有很多种语法的解释呢?

I I get up at six o'clock. i get up at( )six o'clock填什么? I get up at six o'clock.-----------------I go to school at seven o'clock.--------------- 对划线部分提问：I get up at six o'clock 划线部分：at s对划线部分提问：I get up at six o'clock 划线部分：at six o'clock _ _ _ you get up? I get up( )six o'clock. I usually get up at six o'clock.(对画线部分提问）at six o'clock 划线 I get up at half past six o'clock对划线部分提问画线部分：half past six o'clock 6.I get up at six o’clock in the morning.(对划线部分提问)get up (划线） I get up （at six o' clock)?对划线部分提问? I am going to get up at six o clock tomorrow 怎么改一般疑问句 I have to get up at six o'clock(改为一般疑问句） I get up at six o’clock to run.这句话如何翻译? I usually get up at six o'clock 改成否定句 I have to get up at six o'clock every morning.句中有什么语法? i——get up at six o'clock.用have t0或者must填空 He has to get up at six o'clock对at six o'clock提问 He _________(get) up at six o’clock. Get up at six o'clock tomorrow否定句 ____ ____ Get up at six o'clock tomorrow