A:Oh,it's eight o'clock.I must be off now.Nice_______you,Mr.

It's eight o'clock.The students must have lessons now.(相同意思, it's eight o'clock already. Jack be here by now. It's too late.I must be off now.-OK.______ A Go slowly B Sta "I must be going now.""Oh,it's still early,_____ you stay a It's eight o'clock now.就划线部分提问 It's nearly eight o' clock,They_be here now It's eight o' clock now,several ____are still skating must go now.it's a___eight o'clock now. （ It’s eight o’clock i must go to bed now.It's()eleven o'clock.A.at B.in C.on D.a Oh,it's （）seven o'clock!I have to go now A only B already C -----it is 9o'clock now.i must go.-----it's raining outside.