Seeing them trying to take my desk away, I was so angry that I demanded (that) they gave an immediate explanation.

看到他们正要搬走我的书桌，我大为生气，要求他们立即做也解释。

youdao

After seeing the photos Sweden's Foreign Ministry summoned the Ukrainian ambassador and demanded an explanation.

BBC: Tymoshenko case: Europe pressure on Ukraine intensifies

Seeing the down-and-out Oher, Leigh Anne started crying, demanded that her husband turn around and pick him up, and soon enough, the Tuohy family invited Oher into their home for good.

FORBES: Political Economy