–Jane, you’ve made such great efforts that you are ________ to pass the exam.– It is very kind of you to say so, Mr. SmithA.easyB.boundC.possibleD.unlikely
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B解析be bound to do sth一定、必定做某事，相当于be certain to do sth。句意：你下了这么大工夫, 一定能考及格。be easy/possible to do sth一般不用人作主语；unlikely与句意不符。