Riddle - Star if you like!?

Question

Read these lines from Left to right

This is this that
This is is that
This is how that
This is to that
This is keep that
This is an that
This is old that
This is fart that
This is busy that
This is for that
This is forty that
This is seconds that


Now look at the third word in each line :)

Answer 1

very cute. star for you, you made me smile on a really bad day. thanks