`1`. If the air isn't fresh, people will cough.

`2`. If the water is dirty, a lot of fish die.

`3`. If we cut down trees in the forest, there will be more floods.

`4`. If there is too much noise, people won't sleep.

`5`. If there is no water, plants will die.

`+`, Cấu trúc câu điều kiện loại 1: If + S + Vs/es/ S + be, S + will/won't + Vo

`-` CĐK Loại 1 : Diễn tả hành động có thật ở Hiện tại

`+` If - clause : Thì HTĐ : S + Vs / es

`+` Main - clause : Thì TLĐ : S + will + V

`1`.If the air isn't fresh , people will cough

`2`.If the water is dirty , a lot of fish will die

`3`.If we cut down trees in the forest , there will be more floods

`4`.If there is too much noise , people can't sleep

`5`.If there is no water , plants will die

`\text{# Kirigiri}`