根据实际情况,为下列时间选择相对应的动作,填序号。 ( ) 1. It's eight o'clock. ( ) 2. It's twelve. ( ) 3. It's two o'clock. ( ) 4. It's four. ( ) 5. It's nine o'clock. A. It's time for bed. B. Time for lunch. C. It's time to go home. D. Time to play. E. It's time for English class.