I. Write tag questions to the following sentences.
1) The United Kingdom consists of a group of islands, ________2) He has written a report,________ 3) Everything changed after the meeting,________ 4) You come to school on time_______ 5) London Library is located in central London,______ 6) My friends will join our excursion later,________ 7) They haven't arrived yet,_____пожалуйста помогите