B

News 1

Have you ever thought of being able to fly round the world in a few hours though it is about 40，000 kilometres? One day， maybe you can． Last Saturday， the American X-43A airplane made its first flight． It reached a speed of 8，000 kilometres an hour． This makes it the fastest plane in the world． The X-43A is only three to four metres long， but it，s very heavy: it weighs 1，270 kilogrammes．

News 2

Have you ever got angry at books that are full of mistakes? Don- t worry，things will get better soon． Last week， China started checking textbooks， dictionaries and children’s books all over the country． The government(政府：) said the results of the checking would come out at the end of June．

News 3

Floods across the northern Mexican state of Coahuila killed at least 32 people and left 100 more missing．It was reported on Monday． The heavy rain hit the state all night last Friday， so some banks of the river were broken． Along the river about 3，000 families were seriously af-fected．

(      )26． News l talks about ________．