1. They said that they were living with their parents.

( Thì hiện tại tiếp diễn --> Quá khứ tiếp diễn ; our --> their )

2. He said that they were there then to reach consensus.

( Đổi tobe ở hiện tại are --> were ở quá khứ ; today --> then ; here --> there )

3. She told me that she would lend me her doll the next week.

( Will --> would ; you --> me ;  my --> her theo chủ ngữ She ; next week --> the next week )

4. They said that the results would be announced the following day.

( Will --> would ; tomorrow --> the following day )

5. BBC News reported that the Government would release all the UFO flew that had been secret over the past 50 years.

( Will --> would ; have been --> had been ; flies --> flew )

GOOD LUCK TO YOU !

1. they were having with their parents.

=> câu gián tiếp lùi 1 thì

2. we were there that day to reach a consensus 

=> câu gián tiếp lùi 1 thì, here -> there, today -> that day

3. she would lend me my doll the next week

=> câu gián tiếp lùi 1 thì, next week -> the next week

4. the results would be announced the following day

=> câu gián tiếp lùi 1 thì, tomorrow -> the following day

5. the Government would release all the UFO flew that had been secret over the past 50 years.

=> câu gián tiếp lùi 1 thì