`IV`.

`11`.How much does a kilo of beef cost ?

`->` Hỏi về giá :

`=>` How much + do / does + S + cost ?

`12`.Solar energy will be used to protect the environment

`->` BĐ `-` TLĐ : S + will be + VpII ( by O )

`13`.How long did it take her to do her homework everyday ?

`->` Thì QKĐ ( NV ) : Did + S + V ?

`->` It + takes / took + O + time + ( not ) to do sth

`=>` Mất thời gian để làm gì

`->` How long dùng để hỏi về bao lâu

`14`.How far is it from Hue to Da Nang ?

`->` Hỏi về khoảng cách :

`=>` How far is it + from N1 + to N2 ?

`15`.I used to go to primary school on foot

`->` S + used to + V-inf : Đã từng

`16`.Traffic rules should be obeyed strictly by road users

`->` BĐ `-` Should : S + should be + VpII ( by O )

`V`.

`1`.They are old enough to go to school

`->` Enough :

`=>` S1 + is / am / are / ... ( not ) + adj + enough ( for O ) + to do sth

`=>` Đủ để làm gì

`2`.He is going to visit Ha Noi tomorrow

`->` Thì TLG : S + is / am / are + going to do sth

`=>` He , She , It `+` is

`->` `DHNB` : tomorrow

`3`.I teach English myself

`->` Thì HTĐ : S + Vs / es

`=>` I , You , We , They `+` V-inf

`4`.My sister is slim and she has black long hair

`->` Thì HTĐ :

`+` ĐT Tobe : S + is / am / are + adj / n

`+` ĐT Thường : S + Vs / es

`=>` He , She , It `+` is `-` Vs / es

`->` Trật tự của Tính từ :

`-` Opinion `-` Size `-` Age `-` Shape ( long ) `-` Color ( black ) `-` Origin `-` Material `-` Purpose

`5`.My brother drives car carefully

`->` Thì HTĐ : S + Vs / es

`=>` He , She , It `+` Vs / es

`->` Đi sau ĐT là `1` Trạng từ

`=>` Tính từ `+` đuôi " ly " `=` Trạng từ

`\text{# TF}`