题目内容

The number of children who___________ both parents to Aids ________ also expected to rise, reaching more than 26 million in 2010.
A．has lost; isB．have lost; areC．has lost; areD．have lost; is
D

试题分析：句意：因艾滋病而失去双亲的儿童的人数预计要上升，在2010年达到两千六百万多。The number of +名词“.......的数量”，做主语时，句子的谓语用单数形式，故排除C。定语从句的谓语动词要根据先行词来判断单复数，第一个空的定语从句的先行词是The number of children （孩子的数量），因此谓语用单数形式，故排除BD。故选D。
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