We were there ___ four o'clock 填介词 at ,on 或 in

We were there ___ four o'clock 填介词 at ,on 或 in 填介词 Students usually go to school at ___ seven o'clock in Ch we have at four o'clock in the afternoon 用at,in或on填空Shall we meet _four o'clock _Monday afternoon?急,大 The children often play games at four o'clock in the ( )填含oo we ( ) there at 9:00 o`clock ___ is piano lesson?It's at four o'clock. They came ___ the 9o'clock train.填介词~ My cousin,Jim,_____(get)up at 6 o'clock in the morning on we 用适当的介词或副词填空1.we begin our class(填什么)8 o'clock what were you doing at four o'clock yesterday afternoon?回答用是 填介词 in on at for~``````````