Sixteen-year-olds aren’t _______to drive because they can’t drive safely.A. enough calm B. serious enough C. old enough
My brother is two years _____ than me.
I have two tickets for the film. One is mine and _____ is yours.
--- __________ it going? --- Great!
People are really ______________ when they listen to music .
--Who are you _____? -- My mother.