选择合适的名词填空

【小题1】The gymnast went through great pain to perform better on the __________ .
【小题2】Men like using __________ to build their muscles.
【小题3】Some boys are playing basketball on the __________ .
【小题4】Girls like exercising with a __________ to keep warm in winter.
【小题5】You can lie on the __________ to do yoga.