Multiple choice

Some species of antelope which were saved and brought back from the verge of extinction by the efforts of WWF were endangered due to indiscriminate hunting during the last century.

  1. Some species of antelope which were saved and brought back from the verge of extinction by the efforts of WWF were endangered due to

  2. Some of the species of antelope which were saved and brought back from the verge of extinction by the efforts of WWF were endangered due to

  3. Some species of antelope that were saved and brought back from the verge of extinction by the efforts of WWF had been endangered due to

  4. Some species of antelope that had been saved and had been brought back from the verge of extinction by the efforts of WWF had been endangered due to

  5. Some species of antelope that were saved and were brought back from the verge of extinction by the efforts of WWF had been endangered due to
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Correct. The option removes the error of Tense Usage by referring to the indiscriminate hunting in the last century in the Past Perfect Tense.

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