exercise 1
isis/isn'tiswas/isareareexercise 2
exercise 3
Are the crocodiles fed by the park warden?Are our rivers polluted by chemicals?Is drinking water provided by rain?Are small fish eaten by sharks?Is the weed in the pond eaten by fish?exercise 4
The dolphins are trained by Scott.The children are taught by Miranda.The garden pond is cleaned (by dad) every week.Sea shells are used as homes by some crabs.
