2. She has cooked for 10 years.

3. He has played the guitar for a year.

1. She hasn't walked to school since last year.

2. It's 5 years since she last wore that coat.

The last time she wore that coat was 5 years ago.

She hasn't worn that coat for 5 years.

3. I have played the piano for a week.

2 She has cooked for 10 years. ( S + started + Ving / to V = S + have/has + Vpp )

3 He has played the guitar for a year. (S + began + Ving/ to V = S + have/has + Vpp )

1 She hasn't walked to school since last year. ( The last time + quá khứ đơn + was +... = = S + have/has + not + Vpp )

2 It's 5 years since she ( last ) wore that coat.

The last time she wore that coat was 5 years ago.

She hasn't worn that coat for 5 years.

-> It + is + time + since + S + last + V2/ed = The last time + quá khứ đơn + was +... = = S + have/has + not + Vpp )

3 I have played the piano for a week. ( S + started + Ving / to V = S + have/has + Vpp )