she could not sit down to talk ,but kept moving
问题描述：
she could not sit down to talk ,but kept moving
she could not sit down to talk ,but kept moving around the room ( ) doors and furniture although they already sparkled.
答
cleanning前面是 kept movingcleanning对应的是前面的 keptkeep doing表示保持某个状态或动作不好意思具体我还真解释不来，但是这题答案是cleaning 没错的polishing 确实更好些，因为后面说他们发光了