Since it will take years to know the effect of genetically modified food, it’s more sensible to give it a second thought before we eat it, it?
| A．isn’t | B．is | C．won’t | D．will |
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Since it will take years to know the effect of genetically modified food, it’s more sensible to give it a second thought before we eat it, it?
| A．isn’t | B．is | C．won’t | D．will |
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