Complete the sentences using the verbs in brackets in present perfect or present perfect- continuous. 1) jane (write) a letter to a magazine. she (not finish) it yet. 2) den (look) for his pen-knife, but he find) it yet. 3) nick ) a computer game for two hours and he is still playing. 4) greg (wait) for jenny in the downtown. she (not arrive) yet. 5) kate (not finish) painting the flowers yet. she (work) on the picture for two weeks.