摘要： Scientists photographed for the first time ever wild gorillas used a stick to test the depth of a pool before getting into it, according to a recent study. A. which B. what C. that D. when
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Scientists photographed for the first time ever _____ wild gorillas used a stick to test the depth of a pool before getting into it, according to a recent study.
- A.which
- B.what
- C.that
- D.when
Scientists photographed for the first time ever _____ wild gorillas used a stick to test the depth of a pool before getting into it, according to a recent study.
A. which B. what C. that D. when
查看习题详情和答案>>Scientists photographed for the first time ever _____ wild gorillas used a stick to test the depth of a pool before getting into it, according to a recent study.
A. which B. what C. that D. when
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