`I`.

`1`.carefully

`->` Thì HTĐ : S + Vs / es ( `1 , 2` )

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

`->` `DHNB` : often

`->` Đi sau ĐT là `1` Trạng từ 

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

`2`.once a

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

`->` once a month : Một lần mỗi tháng

`3`.pollution

`->` Thì HTĐ ( ĐT Tobe ) : S + is / am / are + adj / n ( `3 , 5` )

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

`->` pollution ( n ) : sự ô nhiễm

`4`.best

`->` SSN :

`=>` S + is / am / are + the adj-est / the most adj

`->` good ( adj ) `->` better ( SSH ) `->` the best ( SSN ) : tốt

`5`.talkative

`->` talkative ( adj ) : lắm chuyện

`II`.

`-` Thì HTĐ ( ĐT Tobe ) :

`+` KĐ : S + is / am / are + adj / n

`+` PĐ : S + isn't / 'm not / aren't + adj / n

`+` NV : Is / Am / Are + S + adj / n ?

`=>`

`+` I `+` am ( not )

`+` He , She , It `+` is ( not )

`+` You , We , They `+` are ( not )

`1`.He is a fast swimmer

`2`.They are English fluent speakers

`3`.These people are hard workers

`4`.

`-` How much are these schoolbags ?

`-` How much do these schoolbags cost ?

`->` Hỏi giá :

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

`5`.What is your uncle's address ?

`->` Hỏi về địa chỉ :

`=>` What + is / was / ... + TTSH / Tên's + address ?

`6`.Are there many monkeys in the cage ?

`->` Are there + some / many / số lượng + N đếm được + ( in somewhere ) ?

`=>` Dùng để hỏi về số lượng

`\text{# TF}`