$\Rightarrow$

`1`. If we raise enough money,we will built a shelter for these homeless youths.

[ Cấu trúc : If + S + V(s,es), S + Will/Can/shall…… + V ]

`2`. They have planted trees in areas recently.

- Thì hiện tại hoàn thành tiếp diễn ( recently )

`3`. Because Tony thinks charity is good and warm a lot of ,he donates clother.

`4`. Can I paint this graffity words over a mural wall?

`5`. Have you registed green summer campain yet?

- Thì hiện tại hoàn thành

`1` If we raise enough money, we will build a shelter for these homeless youths.
Cấu trúc: Câu điều kiện loại 1: If+ S+ V(s/es), S+ will/ can/ may+ V-inf.

`2` Recently they have planted trees in areas.
Vì recently là HTHT: S+ have/ has+ Vp2. 

`3` Because Tony thinks charity is good and warm a lot, he donates clothes.

Cấu trúc: Because+ clause 1, clause 2.

`4` Can I paint these graffiti words over a mural wall?

Cấu trúc: modal V: S+ modal V+ V-inf.

`5` Have you registered for the green summer campaign yet?

Vì yet là HTHT: S+ have/ has+ Vp2.