We are not sure why she didn‟t go into the advanced class, but we ________ she failed the English Proficiency Test.
句意: 我们不确定她有没有去高级班, 但我们怀疑她没有通过英语等级考试。 suspect怀疑; 猜想。 predict预报, 预言。 deduce推论, 推断。