sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: Where can you find the answers to Wiley Plus accounting homework?
 sentence 2: How can I find the answers to accounting I-101? sentence 1: How soon can you test for pregnancy after ovulation?
 sentence 2: How soon can I take a pregnancy test?
not same meaning
not same meaning
same meaning