Multiple choice

Directions: Choose the option which is grammatically correct and the best version of the underlined part. If precision of thought had facilitated precision of behavior, and if reflection had preceded action, it would be ideal for humans.

  1. it would be ideal for humans

  2. it will be ideal for humans.

  3. it could be ideal for humans

  4. it would have been ideal for humans

  5. should have been ideal for humans

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Correct; the construction is correct keeping in mind the helping verb of the subordinate verb.