`1.` I have never used the better computer than this before
`-` Cấu trúc: S + have/has + not + Vpp + ...
`2.` It is ten years since I last heard this song
`-` Cấu trúc: It + is + khoảng thời gian + since + S + last + Ved/Vc2 + ...
`3.` They moved here 6 months ago
`-` Cấu trúc: S + Ved/Vc2
`4.` Minh hasn't written to his penpal for 5 months
`-` Cấu trúc: S + have/has + not + Vpp + ...
`5.` It's two years since we last visited Kuala Lumpur
`-` Cấu trúc: It + is + khoảng thời gian + since + S + last + Ved/Vc2 + ...