题目

. —Excuse me, I want to have my watch fixed, but I can’t find a repair shop. —I know _____ nearby. Come on, I’ll show you. A. one             B. it           C. some         D. that   答案：Aone用来代替刚提到的人或一种可数的物，it也指刚刚提到过的事物，但指同一个，C、D显然不符合题意。  ∠1=135°，∠2=25°，3=______．