Multiple choice

The rivers have been made navigable; the coasts, carefully surveyed, are easy of access, artificial harbors, laboriously dug out and protected against the fury of the sea, afford shelter to the ships. Deep shafts have been sunk in the rocks; labyrinths of underground galleries have been dug out where coal may be raised or minerals extracted. At the crossings of the highways great cities have sprung up, and within their borders ______________.

What is the most critical completion of the passage?

  1. satellite townships have developed.

  2. the mushrooming of the slums is witnessed.

  3. the best of talent lives and works.

  4. enterprise and industry thrives.

  5. all the treasures of industry, science and art have been accumulated.
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This fits in syntactically and logically. It continues in the same tone as 'have been' of the passage. Also, it continues the optimistic and developmental tone of the passage and gives a complete picture of prosperity and growth.

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