Compléter Crop-circle (STATION 4)Version en ligne Complete the short conversation with the appropriate modal verb in present or past: par Gicel Rodriguez 1 have might might represent must result able may be be might not used A : Have you heard about the fascinating phenomenon of crop circles ? B : No , I haven't . Please tell me about it . A : Sure ! These strange circles aren't simply circular , but they form intricate geometric patterns in farm fields . B : Do you know what the explanation for this phenomenon ? A : Even though this mystery has inspired many possible explanations over the years , crop - circle enthusiasts that prefer para - normal explanations for the circles , believe they messages left behind by extraterrestrial visitors . B : But I'm sure there must be a more reliable theory . A : Of course ! More conventionally scientific - minded people have theorized that usually these circles from natural physical forces , such as wind or heat . B : It seems a more realistic explanation ! A : But wait ! There's an even more bizarre explanation : wallabies . B : Wallabies ? What would they have to do with these circles ? A : According to Lara Giddings , Attorney General for the Australian state of Tasmania , the wallabies are eating poppies in fields that provide legal opium for morphine and painkillers . As a result , they become so disoriented that they run around in the fields erratically , creating paths that resemble crop circles . B : I don't know . I think the suggestion of those animals being the cause of the Australian crop circles doesn't really explain the crop - circle phenomenon . Wallabies to create this sort of intricate geometric patterns present in most crop circles . A : And there's also an alternative view that these circles are nothing more than elaborated jokes . B : What do you mean ? A : Richard Taylor , a University of Oregon physicist has been studying these circles . He recently suggested that crop - circle hoaxers sophisticated tools such as GPS devices and laser pointers to burn complex patterns in the fields years ago . Nevertheless , none of these theories has been proved . B : Well , I would dare to say that all of them sound completely odd and bizarre !
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