l. Complete with THE PRESENT PERFECT CONTINUOUS form of 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) on the phone for two hours.

6. I (look) for my keys since 11 a.m/ Z. We (wait) for the 7.We

7. We (wait) for the bus for 20 minutes.

8.She (play) computer games for 50 minutes.

9.They (live) in Moscow since January.
​