Take ______umbrella with you. It's____ useful tool on rainy days.( ) A.an, a B.a, the C.an, the D.the, the 答案:A 【分析】带把伞吧.雨天伞是一个有用的工具. 【解答】a一个,修饰以辅音音素开头的单词.an一个,修饰以元音音素开头的单词.the表示特指.第一个空,泛指一把雨伞,umbrella是以元音音素/ʌ/开头,用an修饰.第二个空,泛指一个有用的工具.useful是以辅音音素/ju/开头,用a修饰. 【点评】考查To repair or improve the appearance of something is to fix it ______. A. out B. off C. up D. over