Learning workbook for foreign languages has book with transparent cover having gaps to receive questions and answers

摘要

The learning exercise work book (1) for self and direct control of the answers to set questions has a transparent cover flap attached to the book cover by a spiral binding. The special workbook has, on each side, two similar width spaces (8,9). One space contains the question output i.e. words and compositions and the other side carries the answers. There are two additional inserts (4,5) which can be used with the transparent flap.