How to design a task which show a sentence word by word not complete sentence?

Hi, I want to design a RSVP task. How can I run a sentence word by word? Not the complete sentence.

Hello,
What have you been trying to do so far?
Did you try taking a look at existing experiments?

Chen

Thank for your answer, but I couldn’t understand none of those code in that page. Does it need special code to run word by word or there is a trick to design the task without code?