用英文的两种表达方式写出下列时间：9:30,6:15,12:45,8:05,7:50,3:20．速回啊

9:30：nine thirty；half past nine6:15：six fifteen；a quarter past six12:45 ：twelve forty-five；a quarter to thirteen8:05：eight five；five past eight7:50：seven fifty ；ten to eight3:20：Three twent...