Future perfect exercises with answers - Tenses exercises

Use the future perfect form of the verb to complete the sentences.
Grammar review future perfect
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The volume of digital information will have grown by a factor of 300 from 2005 to 2020. (grow)
The teacher will have marked attendance by then. (mark)
More than half of India 's parliamentary constituencies will have voted by the end of the third phase. (vote)
I assume that I will have finished by the end of May, " Zorbas said. (finish)
They will have forgotten about it by then. (forget)
I hope medical science will have advanced a bit by then. (advance)
This project will be marked as disputed and your case will have resulted soon by admin. (result)
Meanwhile another wad of ill-assorted, unappetizing books will have arrived by post. (arrive)
If you are constant, in a year you will have increased your vocabulary by more than 1000 words. (increase)
The group is also hopeful that they will have secured enough signatures by then. (secure)
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