【改错题】call sb by the phone 为什么by 要改成on?

【改错题】call sb by the phone 为什么by 要改成on? on/by the phone by the phone.on the on the phone还是by the phone by phone 与 on the phone by phone 和 on the phone有什么不同? drop by on sb. 如何区别on phone和by phone? call 119_____mobile phone right now.A.in B.by C.on D.with shake sb by the take sb by the pull sb by the