Traffic is one of the major causes of global w_______ and climate change.
The school sports meet will be held according to the s___________.
Swimming not only b______ our health, but also helps us have a strong will.
We try to provide a very homely ___________.(氛围)
I witnessed too many _______ in the battle four years ago.(die)
After all those examinations, I know my weaknesses and __________ more clearly. (strong)
