The book is meant to ___needs it .
---- Could I have a word with you? ---- Sorry, I am busy ______. Shall we do it later?
---Why didn’t you go to yesterday’s meeting? ---I would have but I ______ too busy working on the important experiment.
According to the rules, students must not ____ their books during examinations.
The summer is already here, and it _____ to be a most severe one.
I walked out of the cinema, ______ to return to see the wonderful film next Sunday.