【2019 •湖北省武汉】He wrote his phone number _______a piece of paper. A. on B. for C. in D. from 答案:A 【解析】句意:他把电话号码写在一张纸上。考查介词辨析。A. on在……上;B. for为了,给;C. in在……里;D. from从,来自。 “在一张纸上”使用介词on,on a piece of paper;结合句意可知填on;选A。如图,AB是⊙O的直径,C是⊙O上一点,∠BOC=44°,则∠A的度数为 度.