III. Fill in to, on, for, from, about. 1. Tim

III. Fill in to, on, for, from, about.
1. Tim was absent __ class yesterday, as he had the stomach flu.
2. Dont worry __ your new job. With the skills you have, Im sure youll do very well.
3. Dan has so many personal problems that its difficult for him to concentrate __ his studies right now.
4. Bob always blames other people __ his mistakes. Maybe he should take responsibility for his own actions more often.