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$\text{8.}$ I haven't had such a delicious meal before . 

$\text{9.}$ The last time I saw him was 8 days ago . 

$\text{10.}$ It is Monday since I last took a bath . 

$\text{11.}$ We have learned/learnt English for five years . 

$\text{12.}$ I have lived in HCM city since I was 8 . 

$\text{13.}$ She hasn't seen elder sister since 1999 . 

$\text{14.}$ They haven't talked to each other for two months . 

$\text{15.}$ The last time he wasn't wrote to me was on April . 

→ The last time + S + Ved/cột 2 + was + time

→ S + last + Ved/cột 2 + time

→ It's + time + since + S + last + Ved/cột 2 

→ S + hasn't/haven't + Vpp + for/since +time

→ This is the first time + S + has/have +Vpp 

→ S + hasn't/haven't hoặc has/have never + Vpp + ... + before

→ S + started/began + to V/V-ing + time

→ S + has/have + Vpp + for/since + time 

$#Keisha$