Which of the following signs can’t usually be found in a hospital?
Can earthquakes be predicted? The underlined part means "________".
— I wonder if I can learn English well.— _______. All things are difficult before they are easy.
— I missed the beginning of The Voice of China yesterday evening.—_________! But you can watch the re-play tonight.
What method can you think of _________ with these broken computers?
Scientists are trying their best to_______ ways to treat the terrible disease caused by Ebola(埃博拉）．
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