The wrong you’ve done him is terrible, _____ you should make an apology to him, I think.[ ]

Three college students were accused ______ causing the accident on purpose and sentenced to two years in prison.

Have you _______it?’ —Sorry. Would you please explain it for a second time?

Another cup of tea?— No, thanks. I _______ be off. My mom is waiting for me at home .

He is the only student______ I’ve ever met ______ could answer this question .