Complete with the present perfect continous for the verb in brackets. 1.my parents (donate) money to wwf for a long time 2.the eco helpers (plant) the trees all the morning 3. she (collect) the rubbish to recycle for a week 4.engineers (design) the green car for a long time 5.tony (talk) talk on the phone for two hours 6. i (look) for my keys since 11 a.m.