Multiple choice

Change the following sentence into Past Perfect Tense.

“The Persian wheel had been working for a long time.”

  1. The Persian wheel has worked for a long time.

  2. The Persian wheel had worked for a long time.

  3. The Persian wheel will have worked for a long time.

  4. The Persian wheel has been working for a long time.

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

According to the given question, the given sentence has to be changed into Past Perfect Tense which takes only “had + III form of verb”  Answer: (2)

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