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If people eat natural poisons by mistake, they ________ go to hospital without delay.
A．wouldB．canC．mayD．must
D
考查情態(tài)動(dòng)詞：A. would愿意，會(huì)B. can能夠C. may可以，可能，D. must 必須，句意是：如果人們誤服了毒，他們必須立刻去醫(yī)院。選D。
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