1. I last bought new clothes in May.
2. The last time he visited his hometown was 2017.
3. They have not talked to each other since January.
4. She hasn't cried for 2 days.
She last cried 2 days ago.
Cấu trúc:
S + haven't/ hasn't P2 since/for...
= The last time S + V ( quá khứ ) sth + was ... (time).
= S+last + V ( quá khứ) + time.