how/what should be the query for this result

I have 1 table "Progress"

P_no b_no status build_date
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25 1 First_slab 2006/4/5
25 1 second slab 2006/5/6
25 2 first slab 2006/1/2
25 2 third slab 2006/2/3

o/p should be as
Pno,bno, status, max(build_date)

sample o/p can be as below
25 1 second slab 2006/5/6
25 2 third slab 2006/2/3

Thanks in Advance.

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