#Quinhuu.

1. She hasn't seen him at her village for six weeks .

2. He last smoked cigarettes 3 years ago .

4. I have not written to her for 3 months .

-> CT : S + last + V-ed/c2 + ... + time / in time / when + S + V-ed/c2

= S + haven't / hasn't + Vpp + ... + for / since time / since + S + V-ed/c2

1. She hasn't seen him at her village for six weeks.

2. He last smoked cigarettes 3 years ago.

3. I have not written to her for three months.

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@ HTHT <=> QKĐ :

+ S + last + Ved + thời gian + ago

= S + have/has + not + P2 + since/for....