Question : Select the correct active form of the given sentence.
AIDS will have been cured by the year 2070 by scientists.
Option 1: Scientists will have cured AIDS by the year 2070.
Option 2: Scientists cured AIDS by the year 2070.
Option 3: Scientists will cure AIDS by the year 2070.
Option 4: Scientists must have cured AIDS by the year 2070.
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Correct Answer: Scientists will have cured AIDS by the year 2070.
Solution : The correct choice is the first option .
Active voice emphasises the doer of the action, while passive voice emphasises the receiver. To convert passive to active, we make the subject perform the action and rephrase the verb.
The structure of the active voice in the case of the future perfect tense is: Plural subject + will have + past participle form of the main verb + object.
Hence, the transformed active voice of the sentence is: "Scientists will have cured AIDS by the year 2070."
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