（2014年(春)重庆市高三考前冲刺测试卷）15. --Aren't you tired of workout?

-- _______ . I stick to it every clay in order to keep fit.

A．Mind your own business

B．Yes, very much

C．Not in the least

D．It's nothing, though

骨骼肌肉系统的软组织，包括______、_______、_______、_______、_______、_______和______等。