If　you＿＿the　bottle　and　cigarettes，you'll　be　much　healthier．

--- Can you tell me how many study groups there are in a class?              --- Generally speaking, a class often ___ 8 study groups, each with 7 group members.

Special attention should be _____ to air pollution wherever the factory will be built.

We won’t _____ other athletes in the 100-meter race if we don’t spend more time training hard.

We ____ our breath when our teacher read the final list.