◎ 题干
Sydney promised her that he would always do anything he could for her to ________ of her happiness.
[     ]
A.making sure  
B.be sure
C.being sure  
D.make sure
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Sydney promised her that he would always do anything he could for her to ________ of her happiness.[ ]A.making sureB.be sureC.being sureD.make sure…”主要考查了你对  【动词短语】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。