Fill in the blank using the correct form of the verb given in the brackets:
Suddenly, the bushes _27_ (rustle). Father wolf dropped to the ground, 28 (prepare) to leap at the predator. "_29_ (hold) on!" cried mother wolf, "It's a mancub!" It 30 (be) a little baby who was just learning to walk. He 31 (look) into father wolf's face and 32 (laugh). Father wolf _33_ (close) his jaws on the child's back and _34_ (carry) him to mother wolf and 35 (lay) him down among her cubs.
Fill blank [27].