... twelve thirty. I have some sandwiches. 现在十二点三十分. 我吃了一些三明治. It's three ten. I go home. 三点十分. 我回家. It's ten o'clock. It's time to sleep. 现在十点了. 该睡觉了. B.Listen and act. 听一听,做一做. Turn on the light. 打开电灯. Turn off the li...