Complete the sentences using the Present Perfect Continuous form of the verbs in brackets.
1) She
to raise money for the zoo for months. (
try)
2) I
money to environmental organisations for last five years. (
donate)
3) I
at the zoo for a year already! (
volunteer)
4) It
for two hours and it won't stop! (
rain)
5) The students
to reduce pollution. (
try)
6) We
hard to raise awareness of environmental problems. (
work)
7) Acid rain
natural habitats for years. (
destroy)
