Studies show that people are more __________ to suffer from back problems if they always sit before computer screens for long hours.
A．likelyB．possibleC．probableD．sure
A

試題分析：句意：研究表明如果人們總是坐在電腦面前就有可能患背部的疾病。D項sure“一定”，不符合句意，ABC三個單詞都有“可能”的意思，但是只有l(wèi)ikely適用于：Sb be likely to do這個句型，BC的主語應該是it，所以選A。
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Detailed Information
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Immigrants are those who move to a foreign country to make their homes.
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