Question

He ___ a book three days ago. 1.bought 2.had bought

Answer 1

Answer:

had brought

Explanation:

Hope it helps you......

Answer 2

He had bought a book three days ago

• The correct answer is had bought.
• The verb form used in the sentence is Past perfect.
• Since the event is already done. But recollecting them in the present is known as past perfect.
• Past perfect should contain had + past form of the verb.
• Here in this given example, someone had brought some books in the past and recollected them in the present, so we used "had brought".
• The difference between past tense and past perfect tense is that the former uses only the verb  and the action is done in the present whereas in the case of the latter, action was done in the past and the reaction is seen in the present.

Thus in choosing the tense form, it is important to understand the meaning completely and use the tense form accordingly.