`1.` He hasn't missed a plane since 1989.

Giải thích: The last time + S + V-ed + was + [mốc thời gian] = S + have/has + not + Vpp + since + [mốc thời gian]

*Bổ sung đề câu 1: The last time he missed a plane was in 1989.

`2.` Miss Harrison was given a gold watch by the company when she left.

Giải thích: Bị động quá khứ đơn: was/were Vpp.

`3.` Demetrio lives quite far from the school, but we don't.

Giải thích: But nối giữa hai mệnh đề trái ngược nhau: near the school >< far from the school.

@ `Ly`

1. He hasn't planed since 1989.

The last time S + V quá khứ + was ....

-> S + hasn't/ haven't + V PP.2 + since ( vd : 2018)/ for ( vd: 2 months)

2. Miss Harrison was given a gold watch by the company when she left.

Cái này là chuyển về bị động nha , S+ to be ( was/were vì là Simple Past) + PP.2 + by sb + Ob

3. Dimetrio lives far from school, but we don't.

Cái này là đổi lại thôi mà :((( near opposite là far 

Dimetrio doesn't -> We + don't