1 People say that animals can predict a natural disaster. ABLE Animals ……………………… to predict a natural disaster. 2 They believe that a cigarette started the fire. BEEN The fire ……………………… started by a cigarette. 3 They don’t know when the area will flood again. KNOWN It ……………………… the area will flood again. 4 They expect that the firefighters will arrive soon. TO The firefighters ……………………… soon. 5 People think that the climate will change a great deal over the next 20 years. IS It ……………………… will change a great deal over the next 20 years.

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