思考与探究 1.单项选择。 A )1.If you don't know the word,please in a dictionary. A.look it up B.look up it C.look at it D.find it D )2.I won't believe it I see it with my own eyes. A.when B.since C.after D.unless 导航页导航页 思考与探究 Ⅰ. 单项选择。 ( ) 1.If you don’t know the word, please in a dictionary. A. look it up B. look up it C. look at it D. find it ( )2.I won’t believe it I see it with my own eyes. A. when B. since C. after D. unless A D