Sentence:  If the Orioles are to break their losing streak within the next two days , it will have to <WSD>be</WSD> at the expense of the American League champion New York Yankees , who come in here tomorrow for a night game and a single test Sunday afternoon . 
Meaning of the word marked with <WSD> tags:  have the quality of being; (copula, used with an adjective or a predicate noun)