Is Mr. Green in the office—No, he ________ be in the office. Look, thelight in the office is off.

．—Mary，here’s a dictionary．I hope it will help you．—Thanks a lot．It’s ________ what I need．

My friend hasn’t answered my letter yet, and I for a reply.

I beg your pardon, but I didn’t quite catch you— Oh, I ______ myself

The people who have ________the event offered special information about the event.