I use a computer...
happy / hear
I am happy to hear about your dog.
I am happy to hear that.
I have a lot of work...
I have a lot of work to do
I go to school...
I go to school to learn English.
happy / see
I am happy to see Nate.
You have many books...
You have many books to read.
We went to Beisia...
We went to Beisia to buy food.
surprised / hear
I am surprised to hear about their jobs.
There is so much food...
There is so much food to eat.
There is so much food to cook.
I went to a bookstore...
I went to a bookstore to read books.
excited / go
I am excited to go to USJ.
This book taught me important things...
This book taught me important things to remember
...have a good time.
I play volleyball to have a good time.
Yesterday / sad / ...
Yesterday, I was sad to go to school.
Nara is the...
Nara is the (best) place to visit.
Nara is the place to go.
Nara is the place to see.