36.MY uncles is a well-known writer => A(writing)
37.He often catches a lot of fish but he only keeps the big ones and releases the small ones => C ( but)
38.He says that fishing gives him the inspiration to write => B ( not only his hobby but also)
39.The guests were very happy to eat the fresh fish every day => B (Because they ate the fresh fish every day)
40. he was surprised to receive a 30 USD extra bill for cooking oil, (1USD/a day for oil to fry fish) => D (The chef used the cooking oil to fry the fish he gave to the kitchen)