sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: How do I stop worrying about future?
 sentence 2: How do I stop caring so much about what other people think of me? sentence 1: What is the good score in IELTS?
 sentence 2: How can I pass the IELTS? sentence 1: Which sources can I use to learn C in a month if I have a little knowledge about C already?
 sentence 2: What are some good unlimited home WiFi plans in the United States?
not same meaning
same meaning
not same meaning
not same meaning