1,she last wore that dress at her sister 's wedding
=>She hasnot worn that dress since her sister 't wedding
2,I have never been here before ( CT ở dưới)
=>It is the first time I 've been here.
3, Our trip to the countryside lasted for 4 days(Danh từ ghép)
=>We had a four-day trip to the countryside
4 She asked "how many japanese student are there in yourr class ,tom "(cấu trúc câu gián tiếp dạng nghi vấn)
=>She asked Tom how many there were japanese student in his class
5 This is the first time he driven this car(cấu trúc ở dưới)
He has not driven this car before
6, When lan was small ,she used to cry a lot(used to V=often+Vpast)
Lan often cried when she was small
*Cấu trúc
This is the first time + S + have/has + P2: Lần đầu làm gì
=> S +have/has + never + P2 + before
=> S+ have/has not + P2 + before