他坐在公园长椅上，沉思着人生的意义。

He sat on the park bench and ___contemplated the meaning of life.

她考虑过搬到海边住一段时间。

She ___contemplated moving to the seaside for a while.

她凝视着日落，陷入了沉思。

She ___contemplated the sunset, lost in thought.