第21题: [单项选择]He brings with him a wealth of experience and for our part, we ______ him of our loyal support. A. ensure B. assure C. reassure D. guarantee 参考答案:B 答案解析:该题选项中的四个单词都有“确保、保证”之意,但是它们的搭配有所不同。ensure后面往往接that引导的从句;reassure后面直接接表人的宾语名词,再接that从句,形成reassure sb t