Chuyển thành câu cùng nghĩa 1. they have never heard such a thing before 2. John and mary moved Edinburgh twenty years old 4. This is the first time I've attended the Da Lat Flowers Festival

1. They have never heard such a thing before.

⇒ This is the first time they have heard such a thing.

2. John and Mary moved to Edinburgh twenty years ago.

⇒ It is twenty years since John and Mary last moved to Edinburgh.

4. This is the first time I've attended the Da Lat Flowers Festival

⇒ I have never attened the Da Lat Flowers Festival before.

#Study.Well