I had just stepped out of the bathroom and was busily drying myself with a towel________I heard the steps.

充值活动已开启，快来参与吧

当前位置：高中英语 / 高中英语 / 外研版 / 必修2 / Module 5 Newspapers and Magazines

1. I had just stepped out of the bathroom and was busily drying myself with a towel________I heard the steps.

A . while B . when C . since D . after