Research into chimpanzees in the Fongoli region of Senegal has revealed behavior thatcould change the way we view our closest cousins. The research suggests that the Fongoli chimpsseem to have mastered the art of basic tool-making. Furthermore, a chimp was __26__ sharpeninga stick with her teeth before using it as a primitive tool for killing a bush-baby. __27__ few peopledismiss the findings completely, some researchers question their significance. Primatologist CraigStanford, __28__ , while acknowledging that the behavior is fascinating, __29__ that the researchfindings are only important enough to be ‟a short note in a journal.” __30__ , researcher Jill Pruetzclaims that the discovery is remarkable, as it shows that chimp behavior can be extraordinarilyhuman-like.
【題組】26.
(A) considered
(B) observed
(C) trained
(D) noticed