7、eus_________someinformation_______thecomputer?A、for,withB、with,aboutC、about,with()28.Ithinkthe_____inventionisamobilephone. What about you?A、mosthelpfulB、more helpful C、helpfulest ()29.Ireallydidn’tknowanythinghappenedtoJimyesterday.A、whichB、thatC、who()30.Ioft