`1.` After retiring, the writer's uncle take up a strange leisure activity.

→ after retiring: sau khi nghỉ hưu

→ Dc: dòng đầu tiên

`2.` In the morning

→ Dc: he spends most mornings at the beach

`3.` The sea is vast and quiet.

→ Dc: dòng 4

`4.` Yes, they can

→ Dc: many of the things I pick up from the beach are still useful to someone.

$@Ly$

1.after retiring

->after retiring,my uncle-a lover of the sea-took up a strange leisure acrivity

2.he goes to the beach in the morning

->he spend most mornings at the beach

3.the sea is vast and quiet

->...and enjoy the vastness and quietness of the sea

->tobe+adj

4.yes,they can

->many of the things i pick up from the beach are still useful to someone...