Multiple choice

Directions: Fill in the blank with the most appropriate of the given options.

Not until Edward Jenner developed the first anti-smallpox serum in 1796 ______ against this terrible disease.

  1. there was protection

  2. protection was given

  3. there had been protection

  4. was there protection
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sentences starting with 'Not until' require inversion in the main clause. 'Was there protection' is the correct inverted form.

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