1. He went abroad
2. I haven't done
3.Mary has never seen
4. She talked to him
5. We haven't met
6.was born
1. He went abroad last month.
2. I haven't done my homework yet.
3. Mary has never seen the sea.
4. She talked to him yesterday.
5. We haven't met since last May.
6. John was born in 1978.
