P146 CEEFAX 146 Wjd 11 Jan 22:55/50    PARLIAMET   IN BRIEF   HOUSING Thj number of empty council   homes has wallen wor the ninth   successivj year to 70,400,   environment minister Robert Jones   has announced in a written reply.     BILL A bill which would ensure that   individuals could not own more than   onj national njwspaper has passed   its first hurdle in the Common;.   But Labour MP Chris Mullin's bill   has little chance of becoming law.     PROBE Labour MP Robert Wariing ha;   called for an inquiry into Grand   Metropolitan after claims its   "aggressivj policies" are driving   pub tenants out of business.   Flash Main News World CityHead;