他好像在寻找什么东西。

He seems to be ___searching for something.

警察在森林里仔细搜寻失踪的徒步旅行者。

The police are ___searching the forest thoroughly for the missing hiker.

她在抽屉里仔细翻找丢失的钥匙。

She was ___searching the drawer carefully for her lost keys.

她正在网上搜索这个问题的答案。

She is ___searching online for the answer to this question.