【单选题】. .Indeed,thanks to the good ideas of lots of people,like the cycling fans in the 1960s,many people around the world______the city centre streets without cars for many years.
【简答题】How can we help the people who are not as l___小题1:____ as us? There are lots of things we can do. A snowstorm hit much of south china one January. And the disaster caused a great l____小题2:____. Many h...