Помогите пожалуйста решить задание N8.Заранее спасибо!

You didn't see a shooting star last night, did you? Andy isn't very tall, is she?We can pick these flowers, can't we?Billy lost his new camera yesterday, didn't he?Amy didn't call earlier, did she?They weren't late for school yesterday, were they?Helen likes eating fish, doesn't she?I can use the computer after you, can't I?The CD isn't working, is it?