Identificarse:
Mixed tenses
Past Simple vs Present Perfect Simple
Past simple
First Conditional
Present Perfect Simple vs Present Perfect Continuous
Too-enough
Comparison of adjectives
Ordinal numerals
Fortune teller
Wh questions
Free time activities
Adjective or adverb
Second conditional
Past simple vs past contiuous
Will future
Present perfect simple
Buying a plane ticket
Could
Tenses
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