That friend of his is quite impressive: in three weeks time, he managed to run 10 kilometers in less than an hour.

Question

That friend of his is quite impressive:  in three weeks time, he managed to run 10 kilometers in less than an hour.

Accepted Answer

That friend of his is quite impressive:  in three weeks' time, he managed to run 10 kilometers in less than an hour.

Answer

That friend of he's is quite impressive:  in three week's time, he managed to run 10 kilometers in less than an hour.

Answer

That friend of he's is quite impressive:  in three weeks' time, he managed to run 10 kilometers in less than an hour.

Answer

That friend of his is quite impressive:  in three week's time, he managed to run 10 kilometers in less than an hour.

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