Question

It become much _______ to provide enough energy for a big city with large population.

A. difficult B. more difficult

C. most difficult D. easy

Answer 1

B

【解析】

试题分析：句意：对于一个有众多人口的大城市来说提供足够的能量变得更加困难。difficult困难的；more difficult更困难的； most difficult最困难的； easy容易的。所填形容词被副词much修饰该用比较级形式。所以选B。

考点：考查形容词。