.With so many things my mind it took a long time before I I fell asleep.A.fillingB. fill

问题补充：

.With so many things my mind, it took a long time before I I fell asleep.

A.fillingB. filledC. to fillD being filled

答案：

解析：考查with复合结构。此类题首先判断things 与fill之间的关系，主动用dong ,被动关系用done ，根据题意，因为大脑中充满很多事情，所以花了我好长时间才睡着。故选 A项。

考点 with 复合结构。