Составьте 2 предложения с модальными глаголами can / may/must/should и 2 предложения с инфинитивами it's possible/it's

1. ) I can read the whole text from this Literature book.

2.) You should learn this difficult  poem by heart anyway.

3.)It\'s impossible for you to solve this task for an hour.

4.) I think It\'s necessary to feed the birds in winter,especially in the parks.