【題目】Children in poor areas can't afford to go to school. It's necessary _____ them.
A.to help
B.help
C.helping
D.helps

【答案】A
【解析】句意:貧困地區(qū)的孩子們上不起學(xué),有必要幫助他們。句型:It's+形容詞+for sb+to do sth 做某事對于某人來說……,故選A。

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