Complete the sentences using the Present Perfect Continuous form of the verbs in brackets.
 1. He . the environment for over ten years. (study) 
 2. We . hard to build nesting boxes. (work) 
 3. It . for two days. (not/rain) 
 4. He . money to Greenpeace for a long time. (donate) 
 5. The government . to reduce pollution for years. (try) 
 6. I . to clean out ponds for a year now! (volunteer) 
 7. ___Tony _ (talk) on the phone for two hours? 
 8. I _ (look) for my keys since 11 a. m. 
 9. _you _ (wait) for the bus for 20 minutes? 10. She _ (play) computer games for 50 minutes. 
 11. They _ (not/live) in Moscow since January.
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							Complete the sentences using the Present Perfect Continuous form of the verbs in brackets. 1. He . t...
							 
 
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