too late is bad for our health.A Showing up B Eating up C Staying up

问题补充：

too late is bad for our health.

A、Showing up B、Eating up C、Staying up

答案：

解析：句意：熬夜太晚对我们健康有害。A、Showing up出席， 露面； B、Eating up吃光；C、Staying up 熬夜， 结合语境可知选C。