1)
While he was working on his plan, his brain machines checked people's brains to find out what they were thinking.
2) Every
now and then, Q5 looked at the huge screen. Everything was going
well. All the human brains were thinking of other things, and none of
them knew about his terrible plans.
3) When Olivia looked at the neighbour, she saw that he was holding
something in his hand. It looked like a mobile phone.