Question : Directions: In the following question, out of the four alternatives, select the alternative that will improve the bracketed part of the sentence. In case no improvement is needed, select "No improvement".
By the end of this decade, doctors surely (must have discover) a cure for cancer.
(1) would have discovered
(2) could discover
(3) have discovered
(4) No improvement
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
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Correct Answer: (1)
Solution : The sentence can be improved using the first option.
"Would have discovered" is appropriate when expressing a future event that is uncertain but expected. The use of "would have discovered" conveys the idea that there is an expectation or hope that doctors will discover a cure for cancer by the end of the decade.
Therefore, the correct sentence is: "By the end of this decade, doctors surely would have discovered a cure for cancer."
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