What are selectional restriction rules? (There was much person in the audience./ Ideas are sleeping noisily.) What is the ambiguity of the modal verb in: He may not tell the truth./ She must be in her

What are selectional restriction rules? (There was much person in the audience./ Ideas are sleeping noisily.)

What is the ambiguity of the modal verb in: He may not tell the truth./ She must be in her office./You must be very tolerant. ?

How can I disambiguate a sentence? (This university has a dirty language lab.)

What is a specific reference? (Somebody telephoned and left a message for you./I hope somebody will tidy up the file cabinet.)

What "implicature" refers to? (Is there a garage near here? Our engine is making strange noises.)

Please give me the answers for each exercise.