Direction: In the following questions, a part of the sentence is printed in bold. Below are given alternatives to the bold part at (1), (2) and (3) which may improve the sentence. Choose the correct alternative.In case no improvement is needed your answer is (4).
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He will revise it when he is comes back.
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- when he come back
- on coming back
- when he came back
- No improvement
Correct Option: B
Here, on coming back is the right usage.
