underline the infinitives and tell how it is used in each sentences below if it is used as a noun write its function on the line before the number if as an adjective or an adverb write what world is being modified.
1. We need a computer to do the work .
2. Roger's resolution is to practice at the piano more.
3. Lina is working late to make up for her absence yesterday.
4. Her only ambition is to give her mother a happy old age.
5. please give this child something to eat.