74. At this point, the writer is considering adding the following sentence:

Today airports can hardly control the number of airline arrivals and departures, and this air traffic congestion creates all sorts of other problems.

Should the writer add this sentence here?

Answer and Explanation

Your Answer is

Correct Answer is J

Explanation

"It is difficult for airports today to control the number of planes taking off and arriving..." This has nothing to do with the air pollution at the center of this article, so it is not added, and the explanation of item J is correct.