-- Do you often get online? -- Yes, I ______ a lot time on it. It’s a good way to kill time.
It’s important to write these goals down______ merely think about them.
Regulations _____ that students attend at least 90% of the lectures.
It’s ten years since the scientist ___on his life’s work of discovering the valuable chemical.
Although there are no classes in the afternoon now, no student ______ go out of school without the head teacher’s permission.
Though _______ money, his parents managed to send him abroad.