Question

summarizing informational text — quiz — level h
more than half of the worlds population speaks more than one language. but learning an additional language can be tough. is it worth the hard work? many experts say yes. they firmly believe that the advantages of speaking at least two languages are well worth the effort.
what idea is introduced in the first paragraph of this passage?
many experts think everyone should learn at least one additional language.
it is vital to speak at least two languages to keep up with the rest of the world.
speaking more than one language is not only impressive, it is also exciting.
learning another language might be hard, but many experts agree it is worth the work.

Explanation:

The first paragraph states that over half the world is multilingual, learning an additional language is tough, but many experts say the effort is worth it due to the advantages of speaking at least two languages. We match this core idea to the options: the first option misses the "worth the work" element; the second adds an unstated "keep up" claim; the third focuses on impressiveness/excitement which is not mentioned; the fourth directly reflects the paragraph's points about difficulty and expert agreement on the value of the work.

Answer:

D. Learning another language might be hard, but many experts agree it is worth the work.