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$\text{It's nearly twenty years since my father saw his brother.}$

$\rightarrow$ $\text{My father hasn't seen his brother for nearly twenty years}$

$\leftrightarrow$ $\text{Dùng present perfect phủ định: S+have/has+not+V3/ed+O.}$

$\leftrightarrow$ $\text{My father đi với has và V3/ed của see là seen}$

$\rightarrow$ $\text{Bố tôi đã không gặp anh trai của mình gần 20 năm}$

#TRANPHAMGIABAO

Đáp án: 

It's nearly 20 years since my father saw his brother

=> My father hasn't seen his brother for nearly 20 years.

=> The last time my father saw his brother was nearly 20 years ago.

=> My father last saw his brother nearly 20 years ago.

*Công thức:

(+) S + have/has + V3/V-ed

(-) S + have/has + not+ V3/V-ed

CHÚC BẠN HỌC TỐT!!!

#Tiểu Khôn