I was looking at some practic questions and need to find the errors in these sentences:Enrico was paid fifty dollars for five hours work.Last summer, my mother almost butchered thirty chickens a...

I was looking at some practic questions and need to find the errors in these sentences: Enrico was paid fifty dollars for five hours work. Last summer, my mother almost butchered thirty chickens a week. Having never before been in Alberta, High Prairie was a pleasant surprise. Waldo kept the hid of the bear he had shot in his living room. I stocked shelves and served customers for that store last summer and enjoyed it very much. There are so many similar products on the market these days that you are never quite sure which one you should buy. He is an excellent actor, one of the best in Hollywood, I think, do you think so too? Thank you.