Help please.. 1. hurry up! our train (left, leaves, will leave) in half an hour! 2. can you be a little quiet, please? the baby (sleeps, is sleeping, will sleep) 3. susan doesn't think books about pirate ships are very (interested, interest, interesting). she prefers romantic novels. 4. the nelsons looked very surprised when they (hear, were hearing, heard) that their next-door neighbor was a famous writer. 5. mark (twisted, sprained, chipped) his tooth yesterday, when he fell off his bike.