6. present perfect simple. for, since, just, yet, already, still вставьте эти слова в текст. 1. i have known my friend 2003. 2. we have still finished tiding our rooms. can we go for a walk? 3. most of the students haven’t done their classwork 4. tom and ken have been in the united states years_ two years. 5. i haven’t got my first payment, although i have
been working for six weeks.