---Look! The light is still on. Is Mr Wu working in his office？---No, it _____ be Mr Wu. He has gone to Nanjing for a meeting. 

 -- What will the weather be like tomorrow? -- It ______ be rainy, cloudy or sunny. Who knows?

—By       local farmers, we hope        them improve their lives.—I think it’s a good idea. 

This basketball team had lots of excellent players, so its fans never expected that it ____ have failed in the final. 

—Isn’t Ann’s husband over there? —No, it _____ be him — I’m sure he doesn’t wear glasses.