Dark clouds _______ the sunlight. It seemed as if it was going to rain.

Linda’s parents died when she was a baby, and she was _________by her aunt.

A horrible thought _________ him when he was waiting for Tom in the airport: what if the plane from Malaysia had been hijacked（劫持）?

(2014·河北高三教学质量监测)While working outdoors，Linda was________by the heat and fell to the ground，unconscious.

The little boy _____on the mat ____ to his parents that blackbirds had _____their eggs on Mars．