Answer Key for McKeown's Classical Latin?

Latin Learning Latin
1

I am not planning on using it as a main text so I can probably just push it back a bit and use it mainly for revisions(and the workbook does have answers) but does a key exist at all (in any form)?

2

I also have the same question. The workbook has an answer key but not the textbook. Every now and then we come across a problem where there is no example in the text.