aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

`9)` The last time I saw him was 8 days ago.

`10)` It's monday since I last took a bath.

`11)` Samuel has kept a diary since 1997.

`12)` We have learned English for five years.

`13)` I have lived in Ho Chi Minh City since I was 8.

`14)` She started teaching children in this remote village five months ago.

`15)` The last time he wrote to me was in April.

Cấu trúc:

$-$ S + started + to V/ V-ing + thời gian.

= S + has/ have + VptII + for/ since + thời gian.

$-$ S + has/ have + VptII + for/ since + thời gian.

= The last time + S + V(quá khứ đơn) + ... + was/ were + thời gian