--- Do you think it’s a good idea to make friends with your students?--- _____, I do. I think it’s a great idea.
I _____ such a mistake again.
He _____ not pay unless he is punished to pay.
—_____ I water the trees on Tuesday? —No, you needn’t.
—That must be a mistake. —No, it _____ a mistake.
Mary is a hardworking worker, so I ________ her for the job.