Note posted on 25 September 2016
Some requests have reached me about the possibility of publishing a key to the books of exercises. On the other hand, other people have expressed concerns about offering a key (it would invalidate the option of using the exercises as homework).
I would be glad to hear some more opinions about this. Nevertheless, in case of a key being published, this would be my initial plan:
1/ Both the key for the Greek book and for the Latin book would be published in a single volume. The length of each key would be really short, as maybe just one page is needed for every four pages of the book of exercises, so that even both keys together would produce a short volume, the increase in production costs because of adding more pages to a single book is really minimal, and this would be much cheaper than buying two books. Of course, people interested in the key for only one of the two books would find themselves with a second key they do not need, but this is much better than making most people buy two books.
2/ As happens in the case of keys offered for books of exercises of modern languages, they key would be straightforward in questions like multiple choice and similar, questions in which there is only one right answer, but in the case of translation of sentences both from Greek/Latin into English or vice-versa the offered solution should be considered only as a suggestion: students should not consider that a translation that they have devised is wrong if it does not coincide with the one offered in the key. This is even more true for translations from English into Latin/Greek, as the possibilities are many: different word order, usage of synonyms, etc.
As said, I would be glad to hear some opinions.
Note posted on 10 September 2016
The book of exercises that accompanies the Greek grammar is already available in Amazon.com (USA) and in Amazon.co.uk, possibly within the next hours it will be available also in the other European Amazon sites.
The price is exactly the same as for any of the other three books of the series: $16.95, £10.95 and EUR 13.95, although some sites of Amazon (especially the European ones) may ask for a slightly different price (but please disregard any extravagant prices that sometimes appear in some sites).