Unit 1: Present Progressive and Simple Present

Unit 3

Unit 2: Imperative

Unit 4

Unit 3: Simple Past

Unit 5

Unit 4: Past Progressive and Simple Past

Unit 7

Unit 5: Used to

Unit 6

Unit 6: Future

Unit 9

Unit 7: Future Time Clauses

Unit 10

Unit 8: Wh- Questions: Subject and Object

Unit 8

Unit 9: Reflexive and Reciprocal Pronouns

Not covered

Unit 10: Phrasal Verbs

Not covered

Unit 11: Ability: Can, Could, Be able to

Unit 27

Unit 12: Permission: Can, Could, May, Do you mind if

Unit 28

Unit 13: Requests: Can, Could, Will, Would, Would you mind

Unit 29

Unit 14: Advice: Should, Ought to, Had better

Unit 30

Unit 15: Suggestions: Let’s, Could, Why don’t, Why not, How about

Unit 31

Unit 16: Present Perfect: Since and For

Unit 11

Unit 17: Present Perfect: Already and Yet

Unit 12

Unit 18: Present Perfect: Indefinite Past

Unit 13

Unit 19: Present Perfect and Simple Past

Unit 14

Unit 20: Present Perfect Progressive and Present Perfect

Unit 16

Unit 21: Nouns and Quantifiers

Unit 37

Unit 22: Articles: Indefinite and Definite

Unit 38

Unit 23: Adjectives and Adverbs

Unit 17

Unit 24: Adjectives: Comparisons with As...as and Than

Unit 18

Unit 25: Adjectives: Superlatives

Unit 19

Unit 26: Adverbs: As...as, Comparatives, Superlatives

Unit 20

Unit 27: Gerunds: Subject and Object

Unit 21

Unit 28: Gerunds after Prepositions

Unit 22

Unit 29: Infinitives after Certain Verbs

Unit 23

Unit 30: Infinitives of Purpose

Unit 24

Unit 31: Infinitives with Too and Enough

Unit 25

Unit 32: Gerunds and Infinitives

Unit 26

Unit 33: Preferences: Prefer, Would prefer, Would rather

Unit 32

Unit 34: Necessity: Have (got) to, Must, Don’t have to, Must not, Can’t

Unit 33

Unit 35: Expectations: Be supposed to

Unit 34

Unit 36: Future Possibility: May, Might, Could

Unit 35

Unit 37: Conclusions: Must, Have (got) to, May, Might, Could, Can’t

Unit 36