complete the sentences using the present perfect continuous form of the verbs in brackets
1. i  money to environmental organisations for the last fiva years.(donate)
2. i  at the zoo for a year already!  (volunteer)
3. it  for two hours and it won't stop!  (rain)
4. the students  to reduce pollution. (try)
5. we  hard toraise awareness of environmental problems. (work)
6. acid rain  natural habitats for years. (destroy)
fill in the question tag
john already went to the pond, 
ben has called his 
some species of tiger are endangered, 
camels live in the desert, 
john didn't collect the cans and newspapers,
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							complete the sentences using the present perfect continuous form of the verbs in brackets1. i  money...
							 
 
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