Câu hỏi:
18/06/2019 9,569At times, this can be risky, and the keepers have been injured and one has been killed.
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Trả lời:
Đáp án D
risky: mạo hiểm >< secure: an toàn
CÂU HỎI HOT CÙNG CHỦ ĐỀ
Câu 2:
Rapid run-off would cause frequent floods and leave little water during fry seasons.
Câu 3:
Due to an increase in population and the use of nearby land for farming, there are toxic levels of chemicals in the water.
Câu 5:
This national park is special because it has plants and animals from both tropical and temperate zones.
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