Thebackgardenofourhousecontainsalawn,()verypleasanttositoninsummer.
Henoticedthehelicopterhoveringoverthefield.Thentohisastonishment,hesawaropeladder_____outandthreemenclimbingdownit.
Hetoldthestoryinsuchminutedetail________________(簡直就像他親眼看見一樣).
_____,hecannowonlywatchitonTVathome.
At______,photographyisachemicalprocess,duringwhichalight-sensitivematerialisalteredwhenexposedtolight.