To add multiple track

Need to add multiple track in Audacity. Frist I imported track 1. Then Track 2. After that highlighted 2nd track and copy pasted at the end of 1st track.
Then I tested the pasted one. I can listen the voice of the same (1st track). I need 2nd one after 1st one. How can I do this please.

You don’t need to copy and paste. All you need to do is:

  1. Import the two files (they will appear one above the other)
  2. Use the Time Shift tool to slide the second track to the right. (You may need to zoom out so that you can see where you want to move it to).