What's the time by your w____?

What's the time by your w____? what's the time by your watch? 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 by your watch?twelve thirty .but it's four m what`s the time by tom`swatch? what's the w____ of the box? My watch may be several minutes ----.what's the time by your What's the time ______ your watch? 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? What's this your telephone number?This his w____ what's the w____ things that could happen?