题目内容
His English is improving _______, which makes both his parents and his teacher happy.
A. now and then B. little by little
C. sooner or later D. one after another
B
【解析】
试题分析：句意：他的英语在一点一点的提高，这让他的父母和老师很高兴。这里使用短语，四个选项的含义分别是：A. now and then时而，B. little by little一点一点的， C. sooner or later迟早， D. one after another一个接一个，所以选B。
考点：考查短语辨析
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