The number of children who both parents to Aids also expected to rise reaching more than

问题补充：

The number of children who both parents to Aids also expected to rise, reaching more than 26 million in .

A. has lost; is

B. have lost; are

C. has lost; are

D. have lost; is

答案：

A. has lost; is

B. have lost; are

C. has lost; are

(答案→)D. have lost; is

解析：句意：因艾滋病而失去双亲的儿童的人数预计要上升，在达到两千六百万多。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。