CEF Level: Elementary
1 Table of Personal Pronouns                     4 Sentence Transformations, Part 1
2 Third Person Singular, Part 1                  5 Sentence Transformations, Part 2
3 Third Person Singular, Part 2                  6 Sentence Transformations, Part 3

CEF Levels: Elementary / Pre-Intermediate
1 It (Clock Time)
2 It (Time Periods)

CEF Level: Intermediate
1 Sentence Transformations, Part 1               3 Stylistic Features, Part 1
2 Sentence Transformations, Part 2               4 Stylistic Features, Part 2

CEF Level: Upper-Intermediate
1 Unisex 'They', Part 1                          3 Subject v Object Territory, Part 1
2 Unisex 'They', Part 2                          4 Subject v Object Territory, Part 2