`101`.How long have you learnt English ?

`\rightarrow` Thì HTHT ( NV ) : Have / Has + S + V3 / PII ?

`\rightarrow` How long dùng để hỏi về bao lâu

`102`.We haven't seen Tom for nearly two years

`\rightarrow` Thì HTHT ( PĐ ) : S + haven't / hasn't + V3 / PII ( `102 , 103 , 105 , 111 , 113` )

`\rightarrow` `DHNB` : for ( `102 , 105 , 108 , 110 , 113` )

`103`.I haven't seen him since 1985

`\rightarrow` `DHNB` : since ( `103 , 109 . 111` )

`104`.The last time we saw each other was two years ago

`\rightarrow` The last time + S + Ved / V2 + was + time : Lần cuối làm gì

`105`.I haven't seen him for two months

`106`.I last saw her when she left for Ha Noi

`\rightarrow` S + last + Ved / V2 : Lần cuối làm gì

`107`.How long ago did you begin learning English ?

`\rightarrow` Thì QKĐ ( NV ) : Did + S + V ?

`\rightarrow` start / begin + V-ing / to V : Bắt đầu làm gì

`108`.She has learnt English for three years

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

`109`.It has snowed since 5 o'clock

`110`.Sue has been interested in healthy eating for 3 years

`\rightarrow` be interested in + V-ing : Hứng thú làm gì

`111`.I haven't read a book since September $20^{th}$

`112`.We came here last week

`\rightarrow` Thì QKĐ : S + Ved / V2

`\rightarrow` `DHNB` : last

`113`.I haven't seen him for one year

`\text{# Kirigiri}`