yes/no questions Can a clock get cross? Can a crab clap hands? Can a shark jump up a tree? Can frogs swim in ponds? Is the moon green? Have you seen a trail left by a snail? Are all children good at sport? Have you ever slept in a tent? Can we see stars on a clear night? Do trains run on tracks? Can letters have stamps on them? Do some dogs have black spots? Do chimpanzees come from Mars? Are you afraid of thunderstorms? Can a clock get cross? Can a crab clap hands? Can a shark ever jump up a tree? Can frogs swim in ponds? Is the moon green? Have you seen a trail left by a snail? Are all children good at sport? Have you ever slept in a tent? Can we see the stars on a clear night? Do trains run on tracks? Can letters have stamps on them? Do some dogs have black spots? Do chimpanzees come from Mars? Are you afraid of thunderstorms?