Multiple choice

Directions: Fill in the blanks with suitable auxiliaries They ____ tried hard to achieve the target.

  1. have been

  2. had

  3. has been

  4. none

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

The past perfect tense 'had' is appropriate when describing an action that happened before another past action or reference point. 'Have been' and 'has been' are present/perfect tenses that don't fit the context of a completed past effort.

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