lm đỡ six câu đầu cho b còn lại đăng tách ra và có số giúp mik
1-We have been writing to each other for eight year
2-It's a month since my father last smoked cigarettes
3-Mr. Brown has had this car for five years
4-It’s years since I enjoyed myself so much
5-John does not write home once a week now that he is abroad
6-By the end of this year, I will have worked in this bank for ten years.