Question

Manned flights are considered ___ less than steps in human evolution.

• A. nothing
• B. certainly
• C. sufficiently
• D. probably

Hint:

“Nothing less than” = something very significant.

Answer 1

The Correct Option is A

The given sentence is: "Manned flights are considered ___ less than steps in human evolution." To fill in the blank appropriately, let's examine the context and the options:

• Option 1: nothing
  This option suggests that manned flights are just as significant as steps in human evolution. It implies equivalence or no less importance.
• Option 2: certainly
  This option implies certainty about the degree of importance, but it doesn't naturally fit the context of comparison being made in the sentence.
• Option 3: sufficiently
  This option could mean that manned flights sufficiently match the significance of human evolution, but it doesn't express a clear degree of comparison.
• Option 4: probably
  This option suggests ambiguity or uncertainty, which might not adequately match the intended emphasis of the sentence.

Given the context of the sentence where manned flights are being compared to pivotal steps in human evolution, the most suitable option is "nothing". This choice emphasizes that manned flights are equally important or significant as the evolutionary steps. Therefore, the complete sentence is:

Manned flights are considered nothing less than steps in human evolution.

Thus, the correct answer is "nothing". This expression highlights the importance or equivalence in significance between manned flights and evolutionary milestones.