Present Perfect: duration form
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Esercizi sulla forma di durata con How Long …? For e since.

Present Perfect: duration form

Notes

  • IMPORTANT: Internet safety rules

    1. Always ask an adult's permission before using the Internet.

    2. Never give out personal information, such as your name, address, school or phone number.

    3. If a website asks you to type your name or e-mail address, check with an adult first.