Here are the rearranged sentences from the given words:

41. You’ll have a great time at this festival.
42. It’s impolite to talk with your mouth full.
43. This year’s food lasted longer than last year’s.

Now, for the next part related to combining sentences:

44. He wants to offer his hosts a gift, so he brought them some fruit.
45. You should attend the book fair next year because it is worth visiting.
46. You arrive at or leave a Ghanaian house when you greet all the people present.

And for rewriting the sentences without changing their meanings:

47. My concert ticket was more expensive than Anna's concert ticket.
48. Last year’s stage design wasn’t as amazing as this year's stage design.
49. The food festival is more popular than any festival in my city.
50. The first singer performed much worse than the second singer.