1. Sarah hasn't eaten Pho since she left vietnam( tenses transformation) ➩ Sarah 2. My children haven't been in Australia for 5 months ( tenses transformation) ➩ It's 3. She left the party before we arrive ( tenses transformation) ➩ After 4. This is the first time she has met his parents ( tenses transformation) ➩ She 5. I don't hate travelling by train now ( useing Used to) ➩ I (Mọi người có thể cho em xin công thức được không ạ, em bị mất gốc trầm trọng :(( )