1) Whose grandparents are old people? Are his grandparents old people? His grandparents are old people, aren't they?
2) They often watch films in the evening, don't they? Who often watches films in the evening? When do they watch films?
3) Nick has already done his report, hasn't he? Who has already done his report? Has Nick done his report yet?
4) We made a lot of mistakes in the test yesterday, didn't we? Who made a lot of mistakes in the test yesterday? What did we make yesterday?
5) He will invite friends to his birthday next week, won't he? Who will invite friends to his birthday next week? Who will he invite next week?
Объяснение:
1) Whose grandparents are old people? Are his grandparents old people? His grandparents are old people, aren't they?
2) They often watch films in the evening, don't they? Who often watches films in the evening? When do they watch films?
3) Nick has already done his report, hasn't he? Who has already done his report? Has Nick done his report yet?
4) We made a lot of mistakes in the test yesterday, didn't we? Who made a lot of mistakes in the test yesterday? What did we make yesterday?
5) He will invite friends to his birthday next week, won't he? Who will invite friends to his birthday next week? Who will he invite next week?
Объяснение: