• Complete the sentences with the question tags.1. He hasn't paid the gas bill yet,_____?2. You haven't booked the tickets yet,_____?3. They have found their dog,_____?4. She has arrived at the office,_____?5. She hadn't collected her brother's present by Sunday,_____?6. They hadn't seen the house by five o'clock,_____?7. You had spoken to Mr. Davidson by Monday,_____?8. He had worked for two different companies by that time,_____?​