The definite noun phrase the following examples contains enough information for the reader to identify which examples are being talked about. The examples that the definite noun phrase refers to are the ones that are about to be mentioned.
Which of the following statements is grammatically incorrect? And why? (I don't know the answer. Ignore the marks) Meats and vegetables are so expensive these days. We'd better eat out. I'd rather go
Follow is normally transitive. "I can't follow what you're saying" would be most natural. "I don't follow you" is possible but typically means "I don't understand your reasoning". "I'm not following you" suggests it's at the present moment (e.g. when interrupting) rather than after listening to something. It's rather idiomatic, and probably better to be more explicit e.g. "Could you speak more ...