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.