Numbers 1,000—100,000 (Level A)
Numbers 200,000—1,000,000 (Level B)
Pronouns Some/Any/No (Level A)
Pronouns Somebody/Someone, Anybody/Anyone, Nobody/No one, Everybody/Everyone (Level B)
Pronouns Something/Anything/Nothing/Everything (Level B)
Adverbs of Place Somewhere/Anywhere/Nowhere/Everywhere (Level B)
Adjectives with as … as, so … as (Level A)
Adjectives with Rather, Almost, Quite (Level B)
Passive Voice (Level A)
Changing from the Active into the Passive Voice (Level B)
The Present Continuous Passive (Level A)
The Present Perfect Passive (Level B)
Modal Verbs. Expressing Ability (Level A)
Modal Verbs. Expressing Possibility/Probability (Level B)
Modal Verbs. Expressing Permission/Prohibition (Level B)
Modal Verbs. Expressing Requests (Level B)
Modal Verbs. Expressing Suggestions (Level B)
Modal Verbs. Expressing Offers (Level B)
Modal Verbs. Expressing Advice (Level B)
Adverbial Clause with When (Level A)
Pro-Clause with So, Not (Level A)
Revision