I am leaving for Switzerland next week.— !

It’s very important for us _____ some healthy food every day.

Can I speak to Mr. Smith— Sorry, sir. He isn’t in. You leave a message or call him later.

Mary broke up with me!—You _____ have forgotten about the Valentine’s Day．

He came to my class every week, but his attitude ______ that he was not really interested in it. [ ]