30.It's a good habit to have your car brakes ______ before a long journey.
All the preparations for the task ______, and we're ready to start.
—Would you have come to his help, had you been free? —Yes. But I______ engaged.
I don't know what decisions ______ at the conference as John hasn't reported to me yet.
—I'm going away for the weekend. —But you _____you______ out to dinner with me.
Your cough ought ______ before it gets worse.