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nếu câu trả lời hữu ích nhé!
1, I last met my best friend when I was 18 years old. (Lần cuối tôi gặp bạn thân là khi tôi 18 tuổi.)
> Cấu trúc: S + last + V2/ed + time/place
2, The last time my children were taken to the supermarket was when they were in grade 5. (Lần cuối cùng các con tôi được đưa đến siêu thị là khi chúng ở lớp 5.)
> Cấu trúc: The last time + S + V2/ed + was/were + time/place (cách sử dụng giống cấu trúc câu 1)
3, How long have you been waiting for the train? (Bạn đã chờ tàu bao lâu rồi?)
> Cấu trúc: How long + have/has + S + been + V-ing?
4, They have been studying Spanish and Chinese for 5 years. (Họ đã học tiếng Tây Ban Nha và tiếng Trung trong 5 năm.)
> Cấu trúc: S + have/has + been + V-ing + for + khoảng thời gian
5, It's over five months since my younger sister last had her hair cut. (Đã hơn 5 tháng kể từ lần cuối em gái tôi cắt tóc.)
> Cấu trúc: It's + khoảng thời gian + since + S + last + V2/ed
6 This is the first time my friend has seen such a beautiful girl. (Đây là lần đầu tiên bạn tôi nhìn thấy một cô gái xinh đẹp như vậy.)
> Cấu trúc: This is the first time + S + have/has + V3/ed
7, The last time John played the piano was in 2015. (Lần cuối cùng John chơi piano là vào năm 2015.)
> Cấu trúc: The last time + S + V2/ed + was/were + time (là cấu trúc câu 3)
Hãy giúp mọi người biết câu trả lời này thế nào?


Các công thức đổi HTHT - QKĐ
Structure 1:
S + has/have + not + V3/ed + for/since + time
--> S + last + V2/ed
--> The last time + S+ V2/ed + was + time
--> It is / has been + time + since + S+ (last) + V2/ed
Structure 2:
How long + has/have + S+ V3/ed?
--> When + did + S + V1?
--> How long is it + since + S+ V2/ed ?
Structure 3:
S + has/have + V3/ed + for/since + time
--> S + started / began + to V / Ving
--> It is / has been + time + since + S+ V2/ed
Structure 4:
S + has/have + not/never + V3/ed + ... before
--> This/It is the first time + S+ has/have+ V3/ed
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1. I last met my best friend when I was 18 years old.
2. The last time my children were taken to the supermarket was when they were in grade 5.
3. How long have you waited for the train?
4. They have studied Spanish and Chinese for five years.
5. It's over five months since my younger sister last had her hair cut.
6. This is the first time my friend has seen such a beautiful girl in his life.
7. The last time John played the piano was in 2015.
Hãy giúp mọi người biết câu trả lời này thế nào?
Bảng tin

3937
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câu 3 câu 4 dùng HTHT cx đc nhe bạn: 3, How long have you waited for the train?; They have studied Spanish and Chinese for 5 years.