Cấu trúc:

- S + started + to V/ Ving + thời gian + ago = S + have/has + Vpp + for + khoảng thời gian

- S + have/has + not + Vpp + for + khoảng thời gian = S + last + V2/ed + thời gian + ago

Bài làm:

`1`. They started learning English 10 years ago.

`2`. She has given up smoking since last year.

`3`. Tom and Mary started working in that factory in 1990.

`4`. I last wrote to you a month ago.

`5`. I started living in Hue when I was an eleven-year-old girl.

1, They started learning English ten years ago ( Started/ began + Ving/toV = have/ has+ VPII)

2, She has given up smoked since last year

Hoặc She hasn't smoked since last year ( Tương tự câu 1)

3, Tom and Mary began working in that factory in 1990 ( Tương tự câu 1)

4, I last wrote to you one month ago ( last + V ed/cột 2=  have/has + VPII)

5, I started living in Hue when I was an eleven- year old girl ( Tương tự câu 1)

Mình làm vội nên chưa giải thích hết

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