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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

試題分析：句意：因艾滋病而失去雙親的兒童的人數(shù)預(yù)計要上升，在2010年達到兩千六百萬多。The number of +名詞“.......的數(shù)量”，做主語時，句子的謂語用單數(shù)形式，故排除C。定語從句的謂語動詞要根據(jù)先行詞來判斷單復(fù)數(shù)，第一個空的定語從句的先行詞是The number of children （孩子的數(shù)量），因此謂語用單數(shù)形式，故排除BD。故選D。
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