她喜欢周末骑摩托在乡间兜风。

She enjoys riding her ___motorbike through the countryside on weekends.

我哥哥每天骑摩托车去上班。

My brother rides his ___motorbike to work every day.

骑摩托车时一定要戴好头盔。

You must wear a helmet when you ride a ___motorbike.