1 This story is more interesting than any other stories I have ever read.

-> This is the most interesting story that I have ever read.

2 Phong doesn't say '' thank you '' to people who help him with something.

-> You tell him : " Phong, say "thank you" to people who help you with something."

3 We began to study English five years ago.

-> We have studied English for five years.

1. This story is the most interesting story that I've ever read

2. You tell him : ' Phong, you should say thank you to people who help you '

3. We have studied English for five years.

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