1. ¡¡(1) I think it is necessary for my 19-year-old son to have his own mobile phone, for I sometimes want to make sure if he_______home for dinner.

¡¡¡¡(2) I will go to Beijing with him if my son_______home tomorrow.

¡¡¡¡A. come         B. comes              C. has come          D. will come