是on telephone还是on the telephone还是on a telephoe;;;

通过电话是on telephone还是on the telephone on the telephone还是on telephone 是on telephone还是on the telephone还是on a telephoe;;; 是on the telephone还是in the telephone 是in the telephone还是on the telephone? They talked on the telephone 是用in还是用on 十月一日用英文是on th first on October还是on the first of October? on August 19th 是现在时还是过去时 on the telephone 和on telephone是什么意思 是in the afternoon of April 30th 还是 on the afternoon of April 30th 是on May 15th还是in May 15th啊o May 5th 前面是on 还是in 还是at?为什么?、、.. 是On the afternoon of March the 14th还是I n the afternoon of March the 14th? on the telephone ?on telephone?要不要加定冠词? on the telephone 介词为什么用on hangin'on the telephone是什么意思? get on the telephone 意思 hold on the telephone 意思.