. _______ quite recently, most mothers in Britain did not take paid work outside the home.
A、Until
B、Before
C、From
D、Since
【正确答案】：A
【题目解析】：A【句意】直到最近，英国的大部分已婚妇女还没有离家工作。【解析】before，from和since与quite recently连用，不符合语法；before quite recently一般要与过去完成时连用；from（since）quite recently一般要与现在完成进行时连用。until用在否定句中表示“直到……才”之意，如：It was not until the beginning of the century that man began to realize that it was the brain not the heart that was the center of mind．直到本世纪初，人们才逐渐认识到是大脑而不是心脏是思维活动的中心．由此可见，A是正确答案。
