The workbook is mediocre. I have found many places where the questions were ambiguous and there were small mistakes in the instructions. An example is page 122-123 where it asks for an idiom from paragraph 1 for 'to be unable to identify something or figure it out', and the paragraph never states anything remotely close to that meaning much less in an idiomatic way. I have come to expect this from Spectrum as I have used several of their products and find that there is a general lack of final reviewing or proofing to find small mistakes and ambiguities.