Mn ơi giúp mình với ạ
III. Find out ONE mistake of the main verb in each sentence and correct it to write a correct sentence
1.They have typed all the documents by the time their boss arrives
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2.Recently we learnt much about gramma
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3. After they eaten lunch, they took a long rest in the office
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4. This man have served in the army since he was 16.
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5.Poor people lives a life harder than rich ones
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6.I got up earlier than everyday, eat a full breakfast and left home by myself
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