We know that 80          of the cases of blindness can          .
A．per cents; cureB．percent; curedC．per cent; be curedD．percent; are cured
C

試題分析：在英語中當(dāng)表示百分之幾時，應(yīng)該用數(shù)字+percent/per cent，其中percent不能用復(fù)數(shù)，故排除A；根據(jù)can后面應(yīng)該跟動詞原形可知，應(yīng)該用be，故排除BD。所以本題選C。
點評：注意percent一詞既可以分開寫，也可以合起來寫，其不能用復(fù)數(shù)；另外，情態(tài)動詞后面跟動詞原形。
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