What are you going to do this summer vacation? —I’m going to start a club to help students _____not interested in schoolwork.
Where are you going for your vacation?—I want to go to a place_____the people are really friendly. [ ]
It _____ quite a few years _____ the accused was declared innocent and set free.
Look at that girl. Is it Susan?–No, it _______ be her. She has gone back to her home town .
We had to spend three more hours waiting in ______cafe at the airport because _______ flight was delayed.