—You _____ a meal this evening. I had dinner at a restaurant with Tom.—Well, why didn’t you phone me and let me know?

—Where have you been?— I ______ in the heavy traffic. Otherwise I ______ here earlier.

 To be on the safe side, we should fill up the tank now, because we ______ run out of gas on the way.

I told Sally how to get here, but perhaps I _______ for her. 

—Where are the children? The dinner’s going to be completely ruined.—I wish they ________ always late.