单项选择题
A. how photography was developed B. how to show your ideas and feelings in pictures C. how to take pictures in the world D. how to use different cameras
A. it is likely to make an enemy of your admirer B. there are many solutions to the problems of dating C. an admirer has feeling every bit as sensitive as our own D. it is possible to discourage an admirer without hurting his feelings
A.about B.in C.into D.by