we have finished our homework, you have made a mess in here, she has worked really hard, he has put all the books into alphabetical order, they have tidied the cupboards, she has saved hers on a memory stick, I haven't put the speakers on the shelf, she has not printed her homework, have you seen my new speakers?, no, I haven't, has she done her homework?, yes, she has, have they washed the dishes? no, they haven't, has he made lunch? yes, he has,

present perfect FF4 unit 10

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