1) The classrooms have ... painted a) be b) been 2) Trees have been ... a) planted b) plant 3) A bigger playground area ... created a) has been b) have been 4) New desks ... been bought. a) has b) have 5) A gym ... been built. a) has b) have 6) Trees can ... planted. a) been b) be 7) Paper, plastic and aluminium can ... recycled. a) be b) were 8) Animals ... be protected. a) would b) should 9) Public transport had to be ... by us. a) commited b) used

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