1. WHY/ NOT/ YOU/ COME/ HOA'S BIRTHDAY PARTY/ LAST MONDAY?

$⇒$ Why didn't you come to Hoa's birthday party last Monday?

$-$ Dấu hiệu: Last Monday

$⇒$ Thì QKĐ (thể nghi vấn):

$→$ Did (not)+ S+ V-inf?

2. WE/ HE/ CLOSE FRIEND/ SINCE/ WE/ BE/ PRIMARY SCHOOL

$⇒$ We have been close friends since we were primary school

$-$ Dấu hiệu: Since

$⇒$ Thì HTHT áp dụng với since:

$→$ S+ have/ has+ V-ed/ PII+ since+ mốc thời gian/ S+ V-ed/ V2

$#Jade$

`1`.Why didn't you come to Hoa's birthday party last Monday ?

`\rightarrow` Thì QKĐ ( CPĐ ) : S + didn't + V

`\rightarrow` Đặc điểm nhận dạng : last

`2`.We have been close friends since we were primary school

`\rightarrow` Thì HTHT : S + have / has + V3 / PII

`\rightarrow` Đặc điểm nhận dạng : since

`\text{# Kirigiri}`