小题1:A
小题2:B
小题3:C
短文大意:这篇短文主要介绍了三个青少年在国外的学习经历.
小题1:根据Mariko Okada – Tokyo ……So I got lots of speaking practice.……Carla Fonseca – Rio de Janeiro I spent last year studying English in London. ……Alvin Chen – Hong Kong……I had English classes six hours a day, five days a week描述，可知这三个人都是去国外学英语。故选A。
小题2:根据Carla Fonseca – Rio de Janeiro……I missed my family, and I really missed my two cats.描述，可知卡拉不太喜欢呆在外国。故选B。
小题3:联系下文three teenagers’ experiences in year-abroad programmes.描述，可知这是一本关于旅行的杂志。故选C。