`1`. I often go swimming with friends when it is hot.

`->` HTĐ: S + adv chỉ tần suất + V(-s/es)

`->` HTĐ: S + am/is/are + adj

`->` go + V-ing

`->` do sth with sb: làm gì với ai

`2`. His sister has white teeth and small thin lips.

`->` S + have/has + N

`3`. He is a weight lifter so he is very strong and heavy.

`->` S + V + so + S + V: ... vậy nên ...

`->` very + adj: rất

`4`. He doesn't like fish because it isn't his favourite food.

`->` S + V + because + S + V: ... bởi vì ...

`->` HTĐ: S + do/does + not + V-inf

`5`. We should not burn and cut down the forest trees.

`->` S + should not + V-inf: không nên làm gì

`->` cut down sth: chặt phá

`1.` I often go swimming with my friends when it is hot.

`-` HTD: `(+)` S + (Adv chỉ tần xuất) + V(s/es)

`(+)` S + is/am/are + O/Adj

`2.` His sister has white teeth and small thin lips.

`-` Adj + N

`3.` He is a weight lifter so he is very strong and heavy.

`-` Adv + Adj

`4.` He doesn't like fish because it isn't his favorite food.

`-` Not like + N: Không thích cái gì

`-` TTSH + N

`5.` We should not cut down and burn the forest trees.

`-` Shouldn't + V: Không nên làm gì