I believe ___ my english skill

I spend time (learn)___ English with my teacher. (chia động từ trong ngoặc)

nhà môi trường học là gì?

• environment

• environmental

• environmentalist

• environmentally

Many species are ___ danger of extinction

• in

• at

• on

• under

Polar bears will be ___ species in the future

• endangered

• endanger

• endangering

___risk (điền giới từ)

People's activities ___ harm to the environmental

• make

• create

• do

more harm than ___ (điền vào ô trống)

Littering has a serious influence __ the environment (điền giới từ, littering nghĩa là xả rác)

Plastic bags are not ____

• environment friend

• environmentally friendly