题目内容：

She became the champion of 2006 Super Voice Girl and people are watching her ____.
A.at a time B.for the first time C.on time D.all the time 选D为什么

优质解答

all the time 有“一直,持续”的意思,正在进行时be doing的形式（are watching）可以表示一直持续的动作、持续做某事.
at a time 一次；每次；在某时
for the first time 第一次
on time 按时