A recent investigation by scientists at the US Geological Survey shows that strange animal behaviour might help (i) _______ future earthquakes. Investigators found such (ii) _______ about ten kilometres from where a fairly recent earthquake took place. Some birds made strange sounds and flew about wildly; dogs barked and ran around (iii) _______. Scientists believe that animals can sense these environmental changes as early as several days before (iv) _______ disaster. In 1976, after observing animal behaviour, the Chinese scientists were able to predict a (v) _______ earthquake. Although hundreds of thousands of people were killed, the government was able to evacuate millions of other people and thus keep the death toll al a lower level.
(iv)______
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Lời giải:
Báo saiĐáp án C. the
Ở đây, “disaster” là danh từ không đếm được, nên loại A.
Lại thấy, “disaster” không ở số nhiều => loại D.
Còn “their disaster”- thẳm họa của họ, không họp nghĩa.
V. Đáp án D. Terrifying (adj): gây kinh hãi (mang nghĩa chủ động)