what's the time by your watch?twelve thirty .but it's four m

what's the time by your watch?twelve thirty .but it's four m what's the time by your watch? 改错 What's the time in your watch?It says half past twelve. what's the time by your watch 为什么用by What's the time on your watch?还是What's the time by your watc What's the time ______ your watch? What's the time by your w____? What's the time ( ) your watch?it's a quarter ( ) twe My watch may be several minutes ----.what's the time by your What time is it by your watch. 初一英语阅读以下短文：It is four thirty in the afternoon.It's time to g what's the time ()your watch 为什么要用介词by by在这里的中文意思是什么?