Variant 1 You could have come first and won the race if you … faster

28. Although there are many types of mushrooms ... .

A) the chance of picking a mushroom of excellent flavour is 50 percent

B) scientists don't know much about their structure

C) only some species can be eaten

D) people don’t agree about their flavour

29. It is obvious in the passage that fungus ... .

A) has the same number of varieties as mushrooms

B) is more flavourful than mushrooms

C) has some poisonous kinds but they are not deadly poisonous

D) is dependent on more complex structured plants for what they eat