1) The tiger was hungry. Was the tiger hungry? The tiger wasn't hungry.
2) Mary had got a brown bear. Had Mary got a brown bear? Mary hadn't got a brown bear. 3) We could see hippos at the zoo. Could we see hippos at the zoo? We could not see hippos at the zoo 4) His friends had got a horse. Had his friends got a horse? His friends had not got a horse. 5) The crocodiles were green. Were the crocodiles green? The crocodiles were not green.