Here are the completed sentences:
- But then they 2 send us to bed, and it's lights out at ten.
- Tomorrow? Oh, we're trying one of the simulators. It looks scary, and they 3 don't let anyone go in it until the doctor says everything's OK.
- Oh yes, they're so careful. They 4 make us check everything three times before we do anything.
- And they 5 never let us do anything alone. There's always someone from Space Camp there.
- But they're going to 6 let us go shopping alone at the end of the week.