This page contains a full set of answer keys free of charge for the 1st and 2nd editions of the Textbook. For access to additional teaching resources available only to teachers, please write to: teachers@bcsgrammarandtextbook.org .

Lesson	2nd edition			.	1st edition
	Language				Language
Lesson 1
Lesson 2
Lesson 3
Lesson 4
Lesson 5
Lesson 6
Lesson 7
Lesson 8
Lesson 9
Lesson 10
Lesson 11
Lesson 12
Lesson 13
Lesson 14
Lesson 15
Lesson 16
Lesson 17
Lesson 18
Lesson 19