Do you love chocolate?Many people think eating chocolate can make us happy.Now we know people may

Do you love chocolate?Many people think eating chocolate can make us happy.Now we know people may
___become smater by eating chocolate.Scientists let a group of people ___ 85 grams of milk chocolate .This is the first group.And they ask ___ group to eat no chocolate at all.This is the ___ group.After fifteen ___,scientists let them have a test.The people from the first group can remember more words and ___ than those from the second group.Scientists think ___ in chocolate can make people smarter
So eating chocolate is ___ for us.Of course,eating chocolate can't make you ___ every test.You ___ to study hard.Do you think so?
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