MUST-HAVE TO

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Author's Instructions

Điền “must” hoặc “have to” vào chỗ trống

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A06 Unit 17 Adverb Clauses

Grammar - ESL

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first conditional

Grammar - ESL

answer the following activities

Irregular verbs

Grammar - ESL

English as a second language 
Simple Past & Past Participle forms of Irregular Verbs
 

  • Main content: Irregular verbs
  • Other contents: Past simple, Present Perfect

Was or were

Grammar - ESL

English as a second language 
positive, negative, questions

 

  • Main content: Past simple
  • Other contents: verb to be