She usually goes to work by bus,but____on foot.A.some time B.sometimes C.sometime D.some times
问题描述：
She usually goes to work by bus,but____on foot.A.some time B.sometimes C.sometime D.some times
答
some time 一些时间 如：It takes some time.这需要花点时间.
sometimes 有时
some times 几次
故答案是B