`VII`.

`33`.Sydney Opera House was completed in 1973

`\rightarrow` BĐ `-` Thì QKĐ : S + was / were + V3 / PII ( by O )

`34`.Although he is old , he runs five km a day

`\rightarrow` Although + C1 + C2 : Mặc dù

`35`.My mother used to go to school on foot when I was small

`\rightarrow` `\text{S + used to + V :}` Đã từng

`36`.How far is it from Ha Noi to Thai Binh ?

`\rightarrow` Hỏi khoảng cách : How far is it + from N1 + to N2 ?

`II`.

`37`.When do they celebrate Easter ?

`\rightarrow` Thì HTĐ ( CNV ) : Do / Does + S + V ? ( `37 , 39` )

`\rightarrow` When hỏi về mốc thời gian

`38`.Where is the Flower Festival held every year ?

`\rightarrow` BĐNV `-` Thì HTĐ : Is / Am / Are + S + V3 / PII ( by O ) ?

`\rightarrow` Where dùng để hỏi về địa điểm

`39`.Why do you love the traditional festivals in Viet Nam ?

`\rightarrow` Why dùng để hỏi về lý do

`40`.How long have you lived in this area ?

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

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

`\text{# Kirigiri}`