They found conditions that could have permitted the fan to pull the virus up into the air system of

They found conditions that could have permitted the fan to pull the virus up into the air system of thebuilding.
请问THAT后面的是虚拟语气吗 这一句应怎么样翻译

They found the road disappear. 对不对啊？ They dug ____ before they found water.(deep/deeply) they all felt sleepy because they found the lecture hard---- They found a strange book,___were difficult to understand They have found ways to make waste water clean instead of looking for customers,what if they found you? They forced the door open and found an old woman they found it difficult that they would finish their work in two days They found ______ they are famous for only a short time They took the bag out of the lake. They found that the photo on the passport was still clear.