`72.` Computer is the most efficient servants that man has ever had.

Giải thích: $\text{S + the superlative adj + N + S + ...}$

`73.` The last time I played footbaIl was in 2000.

Giải thích: $\text{The last time + S + Ved/V3 + was + time + ago}$

`74.` The last time I went to HCM city was 2 years ago.

Giải thích: $\text{The last time + S + Ved/V3 + was + time + ago}$

`75.` It is the first time I have met such a famous person.

Giải thích: $\text{ It is the first time + S + have/has + Ved/V2 }$

`76.` It is the first time she has seen that boy here.

Giải thích: $\text{ It is the first time + S + have/has + Ved/V2 }$

`77.` The last time she wrote to us was last year.

Giải thích: $\text{The last time + S + Ved/V3 + was + time + ago}$

`78.` It's 8 years since she started to learn English.

$\text{It is + time + since + S + Ved/V3}$

$chucbanhoctot$
$#thaonguyeneakar$

`72`. Computer is the most efficient servants that man has ever had.
`-` Sử dụng cấu trúc so sánh nhất.
`-` S + the most Adj/N..
`73`. The last time I played footbaIl was in `2000`.
`74`. The last time I went to HCM city was `2` years ago.
`-` Cấu trúc : The last time + S + VPII..
`75`. It is the first time I have met such a famous person.
`76`. It is the first time she has seen that boy here.
`-` Cấu trúc : It is the first time + S + have/has + V2/ed
`77`. The last time she wrote to us was last year.
`-` Cấu trúc : The last time + S + V2/ed + tgian
`78`. It's `8` years since she started to learn English.
`-` Cấu trúc : It's + tgian + S + V2/ed
`@Q`