Hey, voici ton devoir :

Exercise 1 :

a. He has been painting for two hours.

b. We have been traveling Western Australia for a couple of months.

c. Aboriginals have been fighting for their rights for the settler arrived.

Exercise 2 :

a. Archie Roach has been writing many songs in his life.

b. Aboriginals people in Australia have been fighting for greater equality for many years.

c. I have been visiting Australia many times.

d. He has been dancing since dusk, he is a real performer.

e. It has been not raining in two weeks.

f. I have been living in Cairns for two years, but I still.

Voilaaaa ;)