Combine the following words into sentences:
1. useful, profession, is, future, my, very, me, for.
2. alive, are, grandparents, my, still, see, rarely, them, we, but, because, they, away, quite, live, far.
3. very, efficient, is, she, enjoys, her, work, she, and.
4. last, up, to, the year, a boarding school, to, went, he.