— Is there any flight to New York? 
— I think there ______ be, for it is snowing so heavily.

We _____ have proved great adventurers, but we have done the greatest march ever made in the past ten years.

It____be the  postman at the door. It's only six o'clock. 

The traffic is heavy  these days. I ____ arrive a bit late, so could you save me a place?

— ____ I take the   book out?  
— I'm afraid not.   

— I  don' t  really  like    James. Why did you invite him?    
— Don't worry. He _____ come. He said   he wasn' t certain what his plans were.