1, Toan suggests that we should plant more trees around our school.

2, Lan suggests that we should keep all the waste paper for recycling.

3, Tung suggests that we shouldn't waste paper, used cans and bottles in the schoolyard.

4, Tuyet suggests that we should clean the classroom floor everyday.

5, Hoang suggest that we shouldn't write anything on the wall.

6, Mai suggests that we should turn off all lights and ceiling fans before leave classroom.

GIẢI THÍCH:

Cấu trúc: suggest+that+S+should: gợi ý nên làm j

Vì tất cả các câu trên chủ ngữ đều là tên ng (số ít) nên suggest thêm "s" phía sau

$\text{1. Toan suggests that we should plant more trees around our school}$

Công thức: S + suggest(s) + that + S + should + v-inf + o (object)

$\text{2. Lam suggests that we should keep all the waste paper for recycling}$

$\text{3.Tung suggests that we shouldn't throw waste paper,used cans and bottles in the school yard}$

$\text{4. Tuyet suggests that we should clean the classroom floor everyday}$

5. Hoang suggests that we should not write anything on the wall.

$\text{6.Mai suggests that we should turn off all lights and ceiling fans before leave classroom.}$