—What’s your favorite subject?—My favorite subject is .
---I’ll try harder next time.---You have said it one hundred times. But _____.
---Boys, don’t swim in the Fengcheng River!---Why not? Isn’t it deep enough _____?
Whether we will hold the sports meet _____ the weather.
If we don’t save energy, it _____ some day.
English _____in many countries, but Chinese _____their own language.