写作Peterisgoingtosellhismountainbike,becausehewantstobuy...
问题详情：写作Peterisgoingtosellhismountainbike,becausehewantstobuyamotorbike.Tomisinterestedinbuyingamountainbike.HegotPeter'stelephonenumberfromafriend.Hedecides(决定)tophonePetertogetsomeinformation...