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.