题目内容
【题目】Danny is checking everything in the cage to ________ his pet bird lives comfortably in it.
A.be sureB.make sureC.feel sureD.seem sure
【答案】B
【解析】
句意:丹尼正在检查笼子里的一切,以确保他的宠物鸟在笼子里生活得舒适。
考查动词短语。be sure确信;make sure确保;feel sure确信;seem sure似乎有把握。A和C两项侧重“有把握,确信”,D项一般用于“seem sure of”结构中,表示“似乎对……有把握”的含义。分析句子可知,此处表示“确保”的含义。故选B。
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