This washing machine is environmentally friendly because it uses _________ water and electricity than ________ models.
A.less; older
B.less; elder
C.fewer; older
D.fewer; elder
网友回答
A解析句意：因为比旧机型节水、耗电量小，所以这台洗衣机是环保的。water和electricity为不可数名词，应由less修饰，故排除C和D。B项为干扰项，注意elder的用法：When paring the ages of people, especially members of the same family, you can use both“older”and“elder”but never say“elder than”.如：my older/elder sister; the older/elder of their two children; My brother is older than me.