Simon: Hey, Tom, what are you doing? 

Tom: Hi, Simon. I’m looking at the stars. 

Simon: Why? Do you want to be a scientist? 

Tom: Yes. Science is my favourite. I think it’s more interesting than the other subjects. 

Simon: Oh. I see. 

Tom:"And"it’s more exciting. 

Simon: Perhaps. 

Tom:"And"more important! 

Simon: Science is the most interesting, exciting"and"important! 

Tom: Too right! 

Simon: Guess what! My uncle is one of the most famous scientists in America.