—I prefer shutting myself in and listening to music all day on Sundays.—That’s_______ I don’t agree. You should have a more active life.(2010.江苏)
“Look at these tracks. It _______ be a wolf.” “Don’t be so sure. I think it _______ be a fox.”
“Show me your permit, please.” “Oh, it’s not in my pocket. It ______.”
“Is there a flight to London this evening?” “There _______ be. I’ll phone the airport and find it out.”
Why did you just sit and watch? You _______ me.
“Why didn’t she come to the meeting yesterday?” “I’m not so sure. She ______ ill.”