她拿起刀并仔细检查了它。

She picked up the knife and ___examined it closely.

他一到达就被医生检查了。

He was ___examined by a doctor as soon as he arrived.

专家们正在检查残骸以寻找爆炸原因的线索。

Experts are ___examining the wreckage for clues about the cause of the explosion.