D. Complete with the Present Perfect Simple or the Present Perfect Progressive of the verbs in brackets. 1. I'm tired. I (hoover) all morning! 2. Kate (do) aerobics for six months now and she (lose) eight kilos so far. 3. Peter (collect) stamps since May but he (not show) his collection to anyone yet. 4. David Roberts is a marathon runner but he (not win) any medals so far. SCOPE 6