試題詳解

49. What is the main idea of the fourth paragraph?
(A) Critics say that the ULEZ is not needed or helpful, but the government thinks it will reduce pollution.
(B) Similar programs in other cities have not resulted in better air quality, so London’s air will probably not improve much.
(C) There are many arguments against ULEZ； however, none of them are based on good evidence.
(D) Climate change demands a more dramatic response than the ULEZ program.