rom December to February, school children in Costa Rica ______.( )(本题2.5分) A、 have lessons every day B、 have their examinations C、 help their parents decorate their houses D、 help their parents pick coffee beans

rom December to February, school children in Costa Rica ______.( )(本题2.5分)

A、 have lessons every day
B、 have their examinations
C、 help their parents decorate their houses
D、 help their parents pick coffee beans

出自：西安石油大学-石油工程技术-大学英语l(下）

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