031.
You may think that America is a free country and Americans kiss their friends. Well, it is a free country as far as rights go, but this does not apply to social situations. If you kiss the wrong person, you might get into trouble. This is what happened to John, a six-year-old primary pupil.
Who did he kiss? One day at school, he kissed a girl in his class on the cheek. However, a teacher saw it and told the principal who thought that John should be punished.
John was told to leave his classroom and stay in another classroom by himself. When John's mother discovered this, she was very angry. She wanted the principal to tell her why the school should punish her son for kissing another six-year-old. "The girl asked him to kiss her and he did this only to show friendship. What's wrong with that?" she said. The principal thinks that a boy kissing a girl is wrong, even though they are only six years old. "It is stated clearly in the student handbook. It is unwelcome behavior," the principal said.

答案解析：
(1) 正確答案為C。根據Americans kiss their friends美國人會親吻朋友們；以及John, a six-year-old primary pupil，約翰是一個六歲的小學生。可知，約翰是美國男孩，因此C項正確。
(2) 正確答案為B。根據he kissed a girl in his class on the cheek. 他親吻了他們班一個女孩的臉頰。可知，約翰受罰是因為他親吻了他們學校的一個女孩，因此B項正確。
(3) 正確答案為A。根據he did this only to show friendship. 他這么做只是想表達友誼。可知，約翰的媽媽認為約翰這么做是為了表示友好，因此A項正確。