Hỏi: Some of the participating schools have also decided to use green cleaning products, which are safer since they do not ……. harmful

Hỏi:
Some of the participating schools have also decided to use green cleaning products, which are safer since they do not ……. harmful chemicals into the environment.
A. release
B. expose
C. compound
D. deplete

B là đáp án đúng
Lời giải:
A. miễn
B. vứt bỏ
C. pha trộn
D. xả hết ra