题目

Railroad tracks（轨道）are owned by the railroad company．This means that you may not play, walk，skate or ride a bike on the railroad．It is also unsafe． There are places where the railroad tracks crosses roads or streets．Maw of these railroad crossings are marked with one of the following signs（标牌）． This sign means you are coming to a railroad crossing. Always lookboth ways and listen carefully to be sure a train is not coming from either direction before crossing the tracks. Many railroad crossing have a gate with flashing lights that closewhen a train is coming. NEV— Can't you act like a gentleman?— ________. A gentleman can't buy the nice and cheap things among such a group of crazy women.A.No, neverB.Sorry, I won'tC.Yes, neverD.Yes, I can