Grat changs hav takn plac in China. Many nw buildings hav bn built in citis, towns and villags. Th mor cars w hav, th mor crowd th roads ar. So th roads bcom widr and widr. Many ovrpasss (立交桥) hav bn built in big citis. Chins popl’s lif is much bttr than vr bfor. W hav Tv sts, washing machins, fridgs, vn computrs, cars tc. W’ll study hardr and mak our countrry strongr and mor bautiful.