Question

Complete with the present perfect continuous form of the verb in brackets

My parents __________________ (donate) money to WWF for a long time.

The eco helpers _____________________ (plant) the trees all the morning.

She _______________________ (collect) the rubbish to recycle for a week.

Engineers______________________(design) the green car for a long time.

Tony _______________________ (talk) on the phone for two hours.

I _______________________ (look) for my keys since 11 a.m.

Answer 1

1. had been donating

2. had been planting

3. had been collecting

4. had been designing

5. had been talking

6. had been looking

Answer 2

1. - have been donating
2. - have been planting
3. - has been collecting
4. - have been designing
5. - has been talking
6. - have been looking